Mathematics Mcqs for PPSC, FFPS, NTS

A can do a certain work-in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in_________?

A. 15 days
B. 20 days
C. 25 days
D. 30 days

A and B can do a work in 8 days, 13, and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in_________?

A. 4 days
B. 6 days
C. 8 days
D. 12 days

A steamer goes downstream from one port to another in 4 hours, it covers the same distance upstream in 5 hours. If the speed of the stream is 2km/hr,the distance between the two parts is_______?

A. 50km
B. 60km
C. 70km
D. 80 km

The speed of a motor boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 min, it will come back in_______?

A. 5 hours 50 min
B. 6 hours
C. 6 hours 50 min
D. 12 hours 10 min

The third proportional to 3.5, 5.6 is:___________?

A. 8.96
B. 8
C. 4.5
D. 6.2

According to a recipe, 400 grams of flour should be mixed with 500 grams of sugar to bake cookies. If I have only 300 grams of flour, how much sugar should I mix to maintain the same proportion?

A. 360
B. 380
C. 375
D. 400

X, Y and Z are quantities of the same kind such that X:Y=5:8 and Y:Z=4:7. Find X:Z.

A. 32:35
B. 67:56
C. 5:14
D. 5:7

Two kinds of rice, 1st costs Rs.13 per kg and 2nd costs Rs.19 per kg are mixed together. Find the ratio in which the 2 types are mixed so that the mixture costs Rs.14.2 per kg?

A. 3:1
B. 4:1
C. 3:4
D. 4:3

A, B, C and D divide a sum of money among themselves in the ratio 7:4:3:2. If D gets Rs. 500 less than A, find the total amount.

A. Rs.100
B. Rs.700
C. Rs.1600
D. Rs.2000
x is 20% more than z and y is 80% more than z. Find x:y.

A. 1:4
B. 3:4
C. 1:3
D. 2:3