If the average of number, its 75% and its 25% is 240, then the number is :
- 345
- 360
- 356
- 230
Explanation
Let the number be x
Then,
⇒x+75% of x+25% of x3=240⇒x+75100x+25100x=240×3⇒x+34x+14x=720⇒2x=720⇒x=360
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