Question
If 3 men with 4 boys can earn Rs. 2940 in 7 days and 5
men with 9 boys earn Rs. 4620 in 6 days. In how many days will 5 men with 3 boys earn Rs. 1180?Solution
By chain rule,  (3 M + 4 B) × 7/2940 = (5 M + 9B ) × 6/4620  33M+44B=30M+54B  3M=10B  M:B = 10:3  (3 M + 4 B) × 7/2940 = (5 M + 3B ) × T/1180  (3 x 10+ 4 × 3) ×7/2940 = (5 × 10 + 3 × 3) × T/1180  (52) × 7/2940 = (59) × T/1180  So T = 2 days
More Time and work Questions
The fiscal deficit is the difference between the government’s total expenditure and its total receipts excluding ______
If the marginal propensity to save is 0.3 and the marginal propensity to import is 0.1, and the government increases expenditures by Rs. 10 billion, ign...
Calculate the F-statistics for the following, using ANOVA
