Question

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Answer 1

Answer:

1) Rs 380

2) 17 m

Step-by-step explanation:

1) first rs 2000 is taken at 2% p.a. for 2 years so the amount to be given back becomes

2000 + 2/100 × 2000 × 2 = Rs 2080

similarly for Rs 1000 the amount in 2 years becomes Rs 1100.

so total amount to be refunded equals 2080 + 1100 = Rs 3180

Ramesh pays by giving Rs 2800 and a watch

so

Rs 2800 + amount of watch = Rs 3180

therefore the watch costs Rs 380.

2) so the man travels 15 m and then 8m here total distance is 23 m but for displacement if we see the man's movement we observe that he makes a right angled triangle

therefore his displacement = (15)^2 + (8)^2 = (x)^2

so displacement = √ 225 + 64 = √289 = 17 m

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