MATH FPSC Assistant Director FIA 2020

Описание: 21. Twelve men take 6 hours to finish a piece of work. After the 12 men have worked for 1 hour,
the boss calls in 8 more men. How many more hours would 20 men take to complete remaining work? (A) 3 .(B) 5 (C) 2 (D) 4
22. A person can do a work in 10 days but another can do it in 15 days.
In how many days, they will complete task if work together?. (A) 5 (B) 3 (C) 6 (D) 9
23. The speed of the train going form Nagpur to Allahabad is 100 km/h
while when coming back from Allahabad to Nagpur, its speed is 150 km/h. Find the average speed
during whole journey. (A) 125 km/hr (B) 75 km/hr (C) 135 km/hr (D) 120 km/hr
24. The average of a group of men is increased by 5 years when a person aged of 18 years
is replaced by a new person of aged 38 years. How many men are there in the group? (A) 3 (6) 4 (C) 5 (D) 6
25. A person paid 2% commission to the property • dealer when he bought a land worth Rs.
6 crore and 75 lakhs. What is. the amount of commission paid?
(A) Rs. 1350000 (B)• Rs. 1450000 . (C) .Rs. 1550000 (D) Rs, 1250000
26. Arif, Hafiz and Haider share Rs. 2560. Hafiz's share is four times as much as Arifs
and Arifs share is one-third of Haider's. How much is the share of Arif? (A) Rs. 320 (B) Rs. 300 (C) Rs. 310 (D) None of these
27. Five years ago, the average age of A, B, C and D was 45 years with E joining them now
the average of all the five is 49 years. How old is E?
(A) 25 years (C) 45 years
(B) 40 years (D) 64 years
28. The width of a rectangle is twice the size of its length.
The length is increased by 30% and width is increased by 20%, what will be the percentage
change in the area of rectangle? (A) 4.51 (B) 3.87 (C) 5.11 (D) None
29. If the 10% of daily wagers were fired while 540 workers survived,
how many workers were originally there? (A) 700 (B) 650 (C) 580 (0) 600
30. The number of elements in power set of (1, 2, 3) is: (A) 4 • (B) 6 (C) 8 (D) 9
31. Twelve men take 6 hours to finith a piece of work. After the 12 men have worked
for 1 hour, the boss calls in 8 more men. How many more hours would
20 men take to complete remaining work? (A) 3 (B) 5 (C) 2 (ID) 4 .
32. If A and B together can complete a piece of work in 15 .days
and B alone in 20 days, in how many days can A alone complete the work? (A) 60 (B) 45 (C) 40 (D) 30
33. If 10•men can do a piece of work in 12 days, the time taken by 12 men
to do the same piece of work will be: (A) 12 days (B) 10 days (C) 9 days (D) 8 days
34. The sum of four consecutive two-digit odd numbers, when divided by 10,
becomes a perfect square. Which of the following can possibly be one of
these four numbers? (A) 21 (B) 25 (C) 41 (D) 67
35, A retailer increase the selling price by 25% due to which his profit percentage
increase from 20% to 25%. What is the percentage increase in cost price? (A) 20% (B) 30%
(C) 25% (D) 50%
36. The average age of A, B, C, D and E is 40 years. The average age of A
and B is 35 years and the average of C and D is 42 years. Age of E is: (A) 48 (B) 46 (C) 42 (D) 45
37. Which number will complete the following number series?
3, 6, 15, , 123, 366 (A) 34 (B) 59 •(C) 42 (D) 60
38. Which number will come next?•2, 5, 12, 23, 38, 57 (A) 69 (B) 76 (C) 80 (D) None of these
39. A father tells his son, "I was of your present age when you were born".
If the father is 36 now, how old was the boy five years back if he is half the
age of his father now? (A) 13 years - (B) 15 years (C) 17 years • (D) None of these 40. (1000)9 +1024 = ? (A) 10000 (B) 1000 (C) 100 (D) None of these