Dividing numerator as well as denominator by b, we get
Given Exp. = (3a + 2b) / (3a - 2b) = (3a/b + 2) / (3a/b - 2)

Correct Option: B

Dividing numerator as well as denominator by b, we get
Given Exp. = (3a + 2b) / (3a - 2b) = (3a/b + 2) / (3a/b - 2)
= [ (3 x 4) / 3 + 2 ] / [ (3 x 4)/3 - 2 ]
= (4 + 2) / (4 - 2)
= 3

No. of pieces = Total length / Length of each piece

Correct Option: D

No. of pieces = Total length / Length of each piece
= 192/3.2
= 60

∵ Weight of 13 m long rod = 23.4 kg
∴ Weight of 1 m long rod = 23.4/13 kg

Correct Option: B

∵Weight of 13 m long rod = 23.4 kg
∴ Weight of 1 m long rod = 23.4 / 13 kg
∴ Weight of 6 m long rod = 23.4 x 6 / 13
= 10.8 kg

∵ Cost of 6 dozen chairs = 6 x 12 x214 = Rs. 15408
And cost of 4 dozen tables = 4 x 12 x 937 = Rs. 44976
∴ Total cost = 15408 + 44976

Correct Option: A

∵ Cost of 6 dozen chairs = 6 x 12 x214 = Rs. 15408
And cost of 4 dozen tables = 4 x 12 x 937 = Rs. 44976
∴ Total cost =15408 + 44976
= Rs. 60384
= Rs. 60000 (Approximately)

∵ Five dozen = 5 x 12 = 60
⇒ No of toys can be kept in 1 box = 60
∴ No of toys can be kept in 98 boxes = 60 x 98 = 5880

Correct Option: B

∵ Five dozen = 5 x 12 = 60
⇒ No of toys can be kept in 1 box = 60
∴ No of toys can be kept in 98 boxes = 60 x 98 = 5880
∴ 29400 toys can be lifted by = 29400 / 5880 = 5 tempos