Question

What is the next number?
please explain​

Answer 1

Answer:

answer is 400.

Step-by-step explanation:

Observe the figure carefully,

it is that 25 × 3 (= 75)is added to the first block which is 25 which gives 100 in the second block NEXT,

25 × 5 (= 125) is added to the second block which is 100 which gives 225, the third block,NEXT,

25 ×7 (= 175) is added to the third block which is 225 which gives 400.

Hence, the next no. in the series is 400

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