(A) 35/36
(B) 38/36
(C) 1
(D) 6/5
Find the average of 5/6, 4/3, 3/4?
Category: Mathematics
If sum of two numbers is 30 and their difference is 8, what is their product?
(A) 200
(B) 201
(C) 209
(D) None of these
If 2a – 2 = 20, then what is the value of a?
(A) 11
(B) 12
(C) 13
(D) 14
A shop keeper buys a watch for Rs. 350/- and sells it for Rs. 392/-. Find his percentage of profit?
(A) 9%
(B) 10%
(C) 11%
(D) 12%
Complete the number series:14, 28, 20, 40, 32, 64, ______
(A) 56
(B) 46
(C) 58
(D) 48
A toy is sold for Rs. 220. What was the cost, if the rate of profit was 10% of the cost?
(A) Rs. 198
(B) Rs. 200
(C) Rs. 210
(D) Rs. 240
In covering a distance of 30 km, Abdul takes 2 hours more than Basit. If Abdul doubles his speed then he would take 1 hour less than Basit. What is the speed of Abdul?
(A) 5 km/hr
(B) 8 km/hr
(C) 10 km/hr
(D) 15 km/hr
If 3 workers complete a task in 12 days, how many workers are needed to complete it in 4 days?
A. 6
B. 8
C. 9
D. 12
Solution:
Work = 3×12 = 36 worker-days.
Required workers = 36 ÷ 4 = 9.
Answer: C.
Going from a 10% rate to a 12% rate is an increase of:
A. 20 percent and 2 percentage points
B. 2 percent and 20 percentage points
C. 20 percentage points only
D. 2 percentage points only
Answer: A
In pipes & cisterns problems, a leak/outlet pipe:
A. Increases net filling rate
B. Has no effect on net rate
C. Decreases net filling rate (acts as negative work)
D. Only affects capacity, not time
Answer: C