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When a number is added to 20 percent of the second number, we get 150 percent of the second number. Find the ratio between the first and second number?- a)13:9
- b)12:10
- c)13:10
- d)17:10
- e)None of these
Correct answer is option 'C'. Can you explain this answer?
When a number is added to 20 percent of the second number, we get 150 percent of the second number. Find the ratio between the first and second number?
a)
13:9
b)
12:10
c)
13:10
d)
17:10
e)
None of these
|
Pk Academy answered |
a + (20/100)*b = (150/100)*b
a:b = 13:10
Therefore, the ratio between the first and second number is 13:10.
a:b = 13:10
Therefore, the ratio between the first and second number is 13:10.
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Solve 1781.90÷54.20 + 456.13 – 2345.80 *0.98 = ? * 2- a)988
- b)-876
- c)-928
- d)-675
- e)None of these
Correct answer is option 'C'. Can you explain this answer?
Solve 1781.90÷54.20 + 456.13 – 2345.80 *0.98 = ? * 2
a)
988
b)
-876
c)
-928
d)
-675
e)
None of these
|
|
Pk Academy answered |
Let’s take round figure value, then the simplification is
1782÷54+456-2345*1
= 33+456-2345
= -1856/2 = -928
1782÷54+456-2345*1
= 33+456-2345
= -1856/2 = -928
5, 21, 69, 213, 645, ?- a)1935
- b)1815
- c)1941
- d)1290
Correct answer is option 'C'. Can you explain this answer?
5, 21, 69, 213, 645, ?
a)
1935
b)
1815
c)
1941
d)
1290
|
|
Pk Academy answered |
5
5 x 3 + 6 = 21
21 x 3 + 6 = 69
69 x 3 + 6 = 213
213 x 3 + 6 = 645
645 x 3 + 6 = 1941.
Therefore, the next number in the series is 1941.
5 x 3 + 6 = 21
21 x 3 + 6 = 69
69 x 3 + 6 = 213
213 x 3 + 6 = 645
645 x 3 + 6 = 1941.
Therefore, the next number in the series is 1941.
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