RRB Group D Mock Test - 17
100 Questions MCQ Test RRB (Group D) - Mock Tests & Previous Year Papers | RRB Group D Mock Test - 17
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A mother after 4 yrs will be twice the age of her daughter. The sum of their ages is 46. What is the present age of the daughter?
Sudhir gets 3 marks for each correctly done question but loses 2 marks for each wrongly done question.He attempts 30 questions and gets 40 marks.The number of correctly attempted questions is
As per provisional population data of Census 2011, India's Literacy Rate?
What is the cost of painting a hall whose area is 729 sq metres if the rate of painting per square metre is Rs. 28?
Rate of painting per square metre is Rs 28
So painting a hall whose area is 729 sq metres = 28 x 729 = Rs 20412
The average weight of 45 students in a class was calculated as 36 kg. It was later found that the weight of two students in the class was wrongly calculated. The actual weight of one of the boys in the class was 32 kg., but it was calculated as 34 kg. and the weight of another boy in the class was 45 kg., whereas it was calculated as 40 kg. What is the actual average weight of the 45 students in the class?(Rounded off to two-digits after decimal)
Actual weight of all the students
= 36 x 45 - 34 + 32 - 40 + 45
= 1620 + 3 = 1623 kg
∴ Actual average weight
= 1623/45 = 36.07 kg
A boat goes 20 km downstream in one hour and the same distance upstream in two hours. The speed of the boat in still water is
Let the speed of boat in still water be x km/hr and the rate of stream be y km/hr
Downstream rate = (x + y) km/hr and upstream rate = (x – y) km/hr
Now, 20 /x + y = 1
⇒ x + y = 20 .....(1)
and 20/x - y = 2
⇒ x - y = 10 .....(2)
From (1) and (2) we have x = 15 km/hr
The difference between the simple interest and the Compound Interest at the rate of 12% p.a on Rs 5,000 for 2 yrs will be
SI = (5000 x 12/100 x 2) = Rs 1200
CI = 5000 x (1 + 12/100 )2 - 5000
= [5000 x ( 112/100 x 112/100 )] - 5000
= 6272 - 5000 = 1272
CI - SI = 1272 - 1200 = Rs 72
What is the letter opposite to A?
There are total thirty two triangles, counting from different sections of the figure as below:
There are sixteen triangles in the main figure ABCD - AOG, GOB, BOF, FOC, CON, HOD, DOE, EOA, AOB, BOC, COD, DOA, ABC, BCD, CDA and DAB
Similarly, there are sixteen more triangles in the section IJKL of the figure
Hence, there are a total of thirty two triangles in the figure.
If he starts walking the morning then finally he will face towards South and if he starts in the evening then finally he will face towards North.
Reason [R] : The density of copper is more than that of glass.
∠BOC = 7xo + 20o ; ∠COA = 3xo and AB is a straight line. Find (∠BOC - ∠COA) .
∠BOC = 7xo + 20o
∠COA = 3xo
we know that
∠BOC + ∠COA = 180o (Linear pair)
7xo + 20o + 3xo = 180o
⇒ 10xo + 20o = 180o
⇒ 10xo = 180o - 20o = 160o
⇒ xo = 160o /10o = 16o
∠BOC = (7 x 16) + 20 = 112 + 20 = 132o
∠COA = 3 x 16 = 48o
∠BOC - ∠COA = 132o - 48o = 84o
In fig. (A), 12 x 14/2 = 84.
In fig. (B), 9 x 18/2 = 81.
Let the missing number in fig. (C) be x.
Then, 11 x x/2 = 88 o r x = 88 x 2/11 = 16.
1. Rain 2. Monsoon 3. Rescue 4. Flood 5. Shelter 6. Relief
If + means -, - means ×, × means ÷ and ÷ means +, then
36×2+8÷8=?
After removing 50% of solution
Quantity of milk = 20 and quantity of water = 30
Therefore, the concentration of the solution is reduced from 40 to 20 i.e., reduced by 50%
3, 8, 13, 24, 41, (....)
nth term + (n + 1) th term + (n + 1) = (n + 2) th term.
Thus, 1st term + 2nd term + 2 = 3rd term;
2nd term + 3rd term + 3 = 4th term and so on.
∴ Missing term = 6th term = 4th term + 5th term + 5
= 24 + 41 + 5 = 70.
Mohinder and Surinder entered into a partnership by investing Rs 12000 and Rs 9000 respectively. After 3 months Sudhir joined them with an investment of Rs 15000. What is the share of Sudhir in a half-yearly profit of Rs 9500?
Mohinder : Surinder : Sudhir
= 12,000 x 6 : 9000 x 6 : 15,000 x 3
= 8 : 6 : 5
∴ Sudhir's share
= Rs. (9500 x 5/19 ) = Rs 2500
DA, HE, LI, ?, TQ
If the annual rate of simple interest increases from 10% to 12.5%, a man\'s yearly income increases by Rs. 1250. His principal (in Rs.) is :
Let the principal be Rs x Then,
Statements :a. Some benches are beads.
b. All beads are flowers.
c. No tree is a flower.
Conclusions:I. Some trees are benches.
II. Some trees are beads.
III. No tree is a bead.
Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?
Due to stoppages, it covers 9 km less
Time taken to cover 9 km = ( 9/54 x 60) min = 10 min
Statements :
a. All pens are boxes.
b. Some boxes are blades.
c. Some blades are files.
Conclusions :
I. Some blades are pens.
II. Some pens are files.
Conclusion I and II is false
The greatest value of 3 cos θ + 4 sin θ is
Each of the following questions consists of two sets of figures. Figures 1,2,3 and 4 constitute the Problem Set while figures A,B,C,D and E constitute the Answer Set. There is a definite relationship between figures 1 and 2. Establish a similar relationship between figures 3 and 4 by selecting a suitable figure from the Answer Set .
In the following problem, out of the five figures marked 1, 2, 3, 4 and 5, four are similar in a certain manner. However, one figure is not like the other four. Choose the figure which is different from the rest.
Figure 1 and fig. 3 can be rotated into each other and fig. 4 and fig. 5 can be rotated into each other.
In the following questions, select a figure from amongst the four alternatives, which when placed in the blank space of fig. (X) would complete the pattern.
P, Q, R, S, T, V, W and Z are sitting around a circle facing the center. T is third to the left of Z who is third to the left of P. S is third to the right of P and fourth to the left of Q. R is second to the right of V.
Q. What is R's position with respect to T?
Study the following diagram.
Q. What does number 4 represent?
22 : 33 : : 32 : ?
So the answer should be 43 = 64
A school has four sections A, B, C, D of Class IX students. The results of half-yearly and annual examinations are shown in the table given below. Answer the question based on this table.
Q. How many students are there in Class IX in the school ?
Since the classification of the students on the basis of their results and sections form independent groups, so the total number of students in the class:
= (28 + 23 + 17 + 27 + 14 + 12 + 8 + 13 + 6 + 17 + 9 + 15 + 64 + 55 + 46 + 76) = 430.
A school has four sections A, B, C, D of Class IX students. The results of half-yearly and annual examinations are shown in the table given below. Answer the question based on this table.
Q. Which section has the minimum failure rate in half-yearly examination ?
Total number of failures in half-yearly exams in a section
= [ (Number of students failed in both exams) + (Number of students failed in half-yearly but passed in Annual exams)] in that section
∴ Failure rate in half-yearly exams in Section A
Similarly, failure rate in half-yearly exams in
The failure rate is minimum for Section D
A school has four sections A, B, C, D of Class IX students. The results of half-yearly and annual examinations are shown in the table given below. Answer the question based on this table.
Q. Which section has the maximum pass percentage in annual examination ?
Total number of students passed in annual exams in a section
= [ (No. of students failed in half-yearly but passed in annual exams) + (No. of students passed in both exams)] in that section
∴ Success rate in annual exams in Section A
Similarly, success rate in annual exams in:
The success rate in annual examination is maximum for Section A.
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