Math, asked by mainasharma0136, 8 months ago

please answer me fast

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Answers

Answered by sachinpatel2710

1

ans 6 = 14.2kg

ans 7 = 6 minutes

Step-by-step explanation:

ANS 6

weight of 57 books = 11.4kg = 11400 gram

Wt. of 1 book = (11400 ÷ 57)gram

Wt. of 71 books = (11400 ÷ 57) × 71

= 14200 gram = 14.2 kg

ANS 7

ram takes (15 × 60)seconds to cover 1000 metre

time taken to cover 1 metre is (15×60)÷1000

time taken for 400 metre is (15×60)÷1000 × 400 = 360second or 6 minutes

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