Multiple choice

The average weight of 9 mangoes increases by 20 gms,if one of them weighing 120 gm is replaced by another, the weight of the new mango is

  1. 260 m

  2. 200 m

  3. 180 gm

  4. 300 gm
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An increase of 20 g in the average of 9 mangoes means the total weight increases by 9 x 20 = 180 g. Replacing the 120 g mango therefore requires a new mango weighing 120 + 180 = 300 g.

AI explanation

Because the average weight of 9 mangoes increases by 20 grams, the total overall weight must increase by 9 multiplied by 20, which equals 180 grams. The new mango must weigh the original 120 grams plus this 180 gram increase. The weight of the new mango is 300 grams.

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