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The annual income of Victor and Angela are in the ratio 8 : 3 and their annual expenditures are in the ratio 4 : 1. If each save Rs. 2000 per annum. What is the annual expense of Angela?
a)2000
b)4000
c)5000
d)2500
Correct answer is option 'D'. Can you explain this answer?

Aarav Sharma answered • Jul 03, 2020
JEE

: y : z will still be the same as the original ratio.

Let the original ratio be a:b:c, so we can write:

x = a/(a+b+c) * 5000
y = b/(a+b+c) * 5000
z = c/(a+b+c) * 5000

Now, let's apply the given reductions:

x' = (a-50)/(a+b+c) * 5000
y' = (b-100)/(a+b+c) * 5000
z' = (c-150)/(a+b+c) * 5000

We want to show that:

x'/... more

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Can i get edurev infinity for jee under 500 per year?6 months will also work;?

Siddharth Sengupta answered • May 11, 2020
JEE

Yes, it is possible to get EduRev Infinity for JEE under 500 per year. Here are some ways to avail of the subscription at a lower price:

1. Look for offers and discounts
EduRev often offers discounts and offers on its Infinity subscription. Keep an eye on their website or social media pages for any ongoing offers. You can also subscribe to their newsletter to get regular updates on... more

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Direction: Study the following question carefully and choose the right answer.
If RAM is coded as 5, GUI is coded as 1, then what is the code for SAP?
a)
3
b)
9
c)
4
d)
7
Correct answer is option 'B'. Can you explain this answer?

EduRev GATE answered • Feb 20, 2025
JEE

The numeric value of the letters (considering A to be 1 and Z to be 26) is added and simplified to obtain a single digit.

For RAM, the numeric value of R, A and M is 18, 1 and 13 respectively. Their sum is 32, Now 32 is further simplified to obtain a single digit by adding 3 and 2, which gives us 5 as the final value.
Similarly for GUI, the numeric value of G,U and I is 7, 21 and 9 respectively. Their sum is 37, which is simplified as 3 + 7 = 10 => 1 + 0 = 1.
Similar process will be done to obtain the code for SAP, the numeric value of S, A and P is 19, 1 and 16 respectively. Their sum is 36, which is simplified as 3 + 6 = 9.
So, the code for SAP is 9.
Hence option (B) is correct.

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If a three digit number ‘abc’ has 2 factors (where a, b, c are digits), how many factors does the 6-digit number ‘abcabc’ have?

a)
16

b)
24

c)
18

d)
30

Correct answer is option 'A'. Can you explain this answer?

Sinjini Deshpande answered • Aug 15, 2022
JEE

If a three digit number is multiplied by its reverse, the result is always a palindrome.

For example, let's take the number 321.

The reverse of 321 is 123.

When we multiply 321 by 123, we get 39,483.

39,483 is a palindrome because it reads the same backward as forward.

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Which has lower standard reduction potential (SRP) value?
a)
Mn²⁺/Mn
b)
Zn²⁺ /Zn
c)
Fe²⁺/Fe
d)
Ni²⁺ /Ni
Correct answer is option 'A'. Can you explain this answer?

Krishna Iyer answered • Jan 09, 2019
JEE

Mn²⁺/ Mn have - 1.18SRPvalue.

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456 ÷ 24 * 38 – 958 + 364 = ?
a)
126
b)
127
c)
128
d)
138
e)
None of these
Correct answer is option 'C'. Can you explain this answer?

Aarav Sharma answered • Feb 11, 2022
JEE

I'm sorry, I cannot provide context or respond to a number without additional information. Please provide more information or a question for me to answer.

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A and B together have Rs. 1210. If of A's amount is equal to of B's amount, how much amount does B have?

a)
Rs. 460

b)
Rs. 484

c)
Rs. 550

d)
Rs. 664

Correct answer is 'B'. Can you explain this answer?

Manoj Ghosh answered • Sep 09, 2019
JEE

A+B=1210(4/15)A=(2/5)B2A=3BTherefore, A=(3B)/2and substituting, (3B/2)+B=1210and hence, 5B=2420 => B=484 Rs.

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Directions: Study the following question carefully and choose the right answer.
In a certain code ‘TERMINAL’ is written as ‘SDQLJOBM’. How is CREDIBLE written in that code?
a)
BQDCJCMF
b)
BQDCHAKD
c)
DSFEJCMF
d)
DSFEHAKD
Correct answer is option 'A'. Can you explain this answer?

EduRev GATE answered • Jan 29, 2025
JEE

Hence, option A is correct.

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Find the highest power of 24 in 150!

a)
46

b)
47

c)
48

d)
49

Correct answer is option 'C'. Can you explain this answer?

Anaya Patel answered • Mar 01, 2020
JEE

24 = 8 × 3
Therefore, we need to find the highest power of 8 and 3 in 150!
8 = 2³
Highest power of 8 in 150! is:

= [(150 / 2) + (150 / 4) + (150 / 8) + (150 / 16) + (150 / 32) + (150 / 64) +(150 / 128)] / 3
= 48

Highest power of 3 in 150! is:

= [150 / 3] + [150 / 9] + [150 / 27] + [150 / 81]
= 72

As the powers of 8 are less, powers of 24 in 150! = 48

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The Wheatstone bridge is balanced for four resistors R1,R2,R3 and R4 with a cell of emf 1.46 V. The cell is now replaced by another cell of emf 1.08 V. To obtain the balance again

a)
All the four resistance should be changed

b)
Both the resistance R1 and R4 should be changed

c)
No resistance needs to be changed

d)
Resistance R4 should be changed only

Correct answer is option 'C'. Can you explain this answer?

Raghavendra Rane answered • Dec 07, 2022
JEE

Explanation:

The Wheatstone bridge is a circuit used to measure an unknown resistance by balancing two legs of a bridge circuit, one with the unknown resistance and the other with a known resistance. The condition for balance in a Wheatstone bridge is that the ratio of the two resistances in one leg of the bridge should be equal to the ratio of the two resistances in the other leg.
... more

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a)
0.668
b)
2.99
c)
0.167
d)
7
e)
none of these
Correct answer is option 'B'. Can you explain this answer?

Knowledge Center answered • Aug 02, 2024
JEE

Given,

14.998% of 619.999 =?

It can also be approximated as

15% of 600=?

= ×600

= 90 ≈ 95

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A number when divided by 1092 gives a remainder 60. What remainder would be obtained by dividing the same number by 28?
a)
6
b)
2
c)
5
d)
4
e)
None
Correct answer is option 'D'. Can you explain this answer?

Aspire Academy answered • Dec 18, 2024
JEE

In these type of of questions we apply a trick by just dividing the given remainder by given no.
60 ÷ 28
remainder will come( 4)

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After the division of a number successively by 3, 4 and 7, the remainders obtained are 2, 1 and 4 respectively. What will be the remainder if 84 divides the same number?
a)
80
b)
75
c)
41
d)
53
Correct answer is option 'D'. Can you explain this answer?

Kaavya Chakraborty answered • May 09, 2022
JEE

Solution:

Let's assume the number to be x.

Given, x mod 3 = 2, x mod 4 = 1 and x mod 7 = 4.

We can solve this problem using the Chinese Remainder Theorem.

Step 1: Find the value of x mod 12.
- x mod 3 = 2 => x = 3k + 2, where k is an integer.
- x mod 4 = 1 => 3k + 2 mod 4 = 1 => k mod 4 = 3.
- k = 4n + 3, where n is an integer.
... more

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Tatto bought a notebook containing 96 pages leaves and numbered them which came to 192 pages. Tappo tore out the latter 25 leaves of the notebook and added the 50 numbers she found on those pages. Which of the following is not true?

a)
She could have found the sum of pages as 1990

b)
She could have found sum of pages as 1275

c)
She could have got sum of pages as 1375

d)
None of these

Correct answer is option 'A'. Can you explain this answer?

Tanishq Dey answered • Feb 07, 2020
JEE

Information Given:

The notebook has 96 leaves, which means it has 192 pages (since each leaf has two pages).
The pages are numbered from 1 to 192.
Tappo tore out the last 25 leaves of the notebook. Since each leaf has 2 pages, she tore out 50 pages.

Step 1: Determine the page numbers torn out

The last 25 leaves correspond to the last 50 pages in the notebook. Since the total number of pages is 192, the page numbers torn out would be from 143 to 192.

... more

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The ratio of the income of A and B is 7 : 8, and the ratio of the income of B and C is 8 : 11, If the difference in the income earned by A and C is Rs. 800, then find the sum of income earned by all three of them.
a)
Rs. 5200
b)
Rs. 4800
c)
Rs. 4000
d)
Rs. 3600
Correct answer is option 'A'. Can you explain this answer?

Mainak Majumdar answered • Sep 17, 2024
JEE

Given:
Income ratio of A and B = 7 : 8
Income ratio of B and C = 8 : 11
Difference in income between A and C = Rs. 800

To find:
Sum of income earned by all three (A, B, and C)

Approach:
1. Let the income of A, B, and C be 7x, 8x, and 11y respectively.
2. Use the given ratios to form equations and solve them to find the values of x and y.
3. ... more

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