Look at the rate list given below and estimate how much will Kiran pay for 42 kg of newspapers.

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Solution

Soluton:

Weight of newspapers Kiran is buying = 42 kg
Price of 1 kg newspaper = ₹ 5
The total money Kiran will have to pay = 42 × ₹ 5

42 can rounded off as 40.
Thus, the estimate amount Kiran will have to pay = 40 × 5
= 40 + 40 + 40 + 40 + 40 = ₹ 200

Hence, Kiran will have to pay approximately ₹200 for 42 kg newspapers.

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Similar questions

Q. Look up the rate list to see today's rates. Help Kiran to find out the cost of the junk.
• How much will Kiran pay for 31 kg newspaper?
1 kg newspaper costs Rs 5. 30 kg cost Rs 5 × 30 = Rs 150. So for 31 kg she pays Rs _____.
• How much will Kiran pay for 42 kg newspaper?
• Also find the cost of:
(a) 22 kg of plastic
(b) 23 kg of waste paper
(c) 12 kg of iron

Rate-List
Kind of Junk	Price of 1 Kg
1. Waste Paper	Rs 4/-
2. Newspaper	Rs 5/-
3. Iron	Rs 12/-
4. Brass	Rs 170/-
5. Plastic	Rs 10/-

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\frac{1}{2}

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