∵ B's daily earning = Rs. (150 - 94) = Rs. 56
⇒ A's daily earning = Rs. (150 - 76) = Rs. 74

Correct Option: D

∵ B's daily earning = Rs. (150 - 94) = Rs. 56
⇒ A's daily earning = Rs. (150 - 76) = Rs. 74
∴ C's daily earning = Rs. [(150 - (56 + 74)] = Rs. 20

∵ Factory A turns out x cars in one hour. Factory B turns out y/2 cars in one hour.
⇒ In one hour both the factories A and B can turn out (x + y/2) cars

Correct Option: D

∵ Factory A turns out x cars in one hour. Factory B turns out y/2 cars in one hour.
⇒ In one hour both the factories A and B can turn out (x + y/2) cars
∴ In 8 hours both factories turn out = 8( x + y/2) cars
= 4(2x + y) cars.

Since a alone can finish a work in 10 days and B alone can do it in 15 days. So if they work together then the ration of work done by A and B is = (1/10) : (1/15).

Correct Option: C

Since a alone can finish a work in 10 days and B alone can do it in 15 days. So if they work together then the ration of work done by A and B is = (1/10) : (1/15).

∴ The wages A will get = (1/10)[(1/10) + (1/15)] x 75
= Rs. 45

3 men = 4 women
∴ 1 man = 4/3 women
∴ 7 men + 5 women = 7 x (4/3) + 5 = 43/3 women
∴ M₁D₁W₂ = M₂D₂W₁

Correct Option: D

3 men = 4 women
∴ 1 man = 4/3 women
∴ 7 men + 5 women = 7 x (4/3) + 5 = 43/3 women
∴ M₁D₁W₂ = M₂D₂W₁
∴ 4 x 43 x 1 = (43/3) x D₂ x 1
∴ D₂ = 3 x 4 = 12 days

1 day work of A = 1/10 = 0.1
1 day work of B = 1/10 + 60% of 1/10 = 0.1 + 0.06 = 0.16

Correct Option: C

1 day work of A = 1/10 = 0.1
1 day work of B = 1/10 + 60% of 1/10 = 0.1 + 0.06 = 0.16
So number of days taken by B to complete the work = 1/0.16
= 6²/₃