A sum of 700 has to be used to give seven cash prizes to the students of a school for their overall academic performance. If each prize is 20 less than its preceding prize, what is the least value of the prize?

20132Mprelimsupscyear-2013p2csatquantitative-abilitylinear-equation
A.Rs 30
B.Rs 40Correct
C.Rs 60
D.Rs 80
Explanation & Solution

Correct Option: (B) Rs 40

Let smallest prize be x. Then prizes are: x, x+20, x+40, x+60, x+80, x+100, x+120. Sum = 7x + 420 = 700. Therefore x = 40.

हिंदी में प्रश्न एवं आदर्श उत्तर

A sum of 700 has to be used to give seven cash prizes to the students of a school for their overall academic performance. If each prize is 20 less than its preceding prize, what is the least value of the prize?

A.Rs 30
B.Rs 40सही
C.Rs 60
D.Rs 80

सही उत्तर: (B) Rs 40

Let smallest prize be x. Then prizes are: x, x+20, x+40, x+60, x+80, x+100, x+120. Sum = 7x + 420 = 700. Therefore x = 40.

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