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CBSE Class 9 Answered

In kushal’s school, quiz contests were held in different areas. The eligibility criteria to win a merit certificate are as following:

  • To participate in quiz contests in at least four areas. Maximum points for each area is 20
  • If participated in more than 4, the best four will be considered for eligibility
  • Average point earned in four quiz contests-equal to or above 13

Rohan planned to participate in 4 areas. He got 6,16 and 8 marks, respectively in environmental awareness,hindi spelling and scientific literacy. What is the minimum point that he needs to score in financial literacy quiz to earn the merit certificate?

Asked by rkjha_in | 18 Nov, 2014, 09:53: PM
answered-by-expert Expert Answer
L e t space x space b e space t h e space m a r k s space o f space t h e space q u i z space c o n t e s t s. S i n c e space K u s h a l space h a s space t o space g e t space a n space a v e r a g e space o f space 13 space i n space a l l space t h e space 4 space s u b j e c t s therefore 13 equals fraction numerator 6 plus 16 plus 8 plus x over denominator 4 end fraction rightwards double arrow 52 equals 6 plus 16 plus 8 plus x rightwards double arrow 52 equals 30 plus x rightwards double arrow x equals 22 K u s h a l space h a s space t o space g e t space 22 space m a r k s space i n space f i n a n c i a l space l i t e r a c y space t o space e a r n space t h e space m e r i t space c e r t i f i c a t e.
Answered by Prasenjit Paul | 19 Nov, 2014, 10:10: AM

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