Question

please solve this questionL
and step by step explanation
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Answer 1

4. let the age of gagan is x then

5+ 2 x = 45

2 x = 45 - 5

2 x = 40

x = 40 / 2

x = 20

5. 120 men = 44 days

120×44

= 280 = 120 × 44 / 280

answer is 33

6. C.p of chair - s.p of chair

loss = 700 - 570

=> 130