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A sum of rs 700 as to be used to give seven cash prizes to the student of a school for their over all academic performance. if each prize is rs.20 less

than its preceding prize what is the least value of the prize


Let the least price value be Rs x
The next prizes will be x+20, x+40, x+60, x+80, x+100, x+120

The sum of all prizes = Rs700

x +x+20+x+40+x+60+x+80+x+100+x+120 = 700
7x + 420 = 700
7x = 280
x = 40
Prizes are 40, 60, 80, 100, 120, 140, 160 

Least value of the prize is Rs 40 
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