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Averages
Average cost of 5 apples and 4 mangoes is Rs. 36. The average cost of 7 apples and 8 mangoes is Rs. 48. What is the total cost of 24 apples and 24 mangoes?
Read Solution (Total 2)
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- Average cost of 5 apples and 4 mangoes = Rs. 36
Total cost = 36 * 9 = 324
Average cost of 7 apples and 8 mangoes = 48
Total cost = 48 * 15 = 720
Total cost of 12 apples and 12 mangoes = 324 + 720 = 1044
Therefore, cost of 24 apples and 24 mangoes = 1044 * 2 = 2088 - 12 years agoHelpfull: Yes(61) No(5)
- 5apples+4mangoes=36 --(1)
7apples+8mangoes=48 --(2)
adding eqn1 & eqn2
12apples+12mangoes=84 --(3)
multiplying eqn3 by 2
24apples+24mangoes=168
ans:168 - 12 years agoHelpfull: Yes(9) No(18)
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