A body travels a distance of 20m in 7th sec and 24m in 9th sec the distance travelled by it in 15th sec is
shreya485741:
it covers 36 m
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if in 2 seconds distance is added with 4m then in 15 - 9 =6 seconds distance will be added with 6×2 = 12m hence answer is 24 + 12 = 36m
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