Average

Quantitative Aptitude (CGL)

Title

45:30

8 of 24 completed

5 of 15 completed

38 of 100 completed

8 of 20 completed

Indian Economy - Understanding the basics of Indian economic system

The average weight of 9 mangoes increase by 20 grams if one of them weighting 120 grams is replaced by another. The weight of the new mango is ?

180 gm

200 gm

260 gm

300 gm

Let say average wt of 9 Mangoes = x gm

weight of 9 Mangoes = 9 x gm

Let say weight of mango which was replaced by 120gm mango = M gm

New weight of 9 Mangoes = 9x + M - 120 gm

New Average = x + 20 gm

9 (x + 20) = 9x + M - 120

= 9x + 180 = 9x + M - 120

= M = 300 gm

Hence, option 4 is the correct answer.