Question

If 2 men or 5 women or 7 boys can finish a work in 469 days, then the number of days taken by 7 men, 5 women and 12 boys to finish the work is

Answer 1

2m = 5w = 7b
m:w= 5: 2
w:b=7:5
w will be same in both
so m: w = 35:14
w:b=14:10
m:w:b=35 :14:10
so total work = 2 ×35 × 469
7×35 + 14 ×5 +12×10 =245 +120 + 70 =435
so time = 2 ×35 ×469 / 435

Answer 2

Answer:98

Step-by-step explanation:

2m = 5w = 7b

m:w= 5: 2

w:b=7:5

w will be same in both

so m: w = 35:14

w:b=14:10

m:w:b=35 :14:10

so total work = 2 ×35 × 469

7×35 + 14 ×5 +2×10 =245 +20 + 70 =335

so time = 2 ×35 ×469 / 335= 98