Question

Seema brought some chocolates. She distributed 25% of the chocolates among the students
of the first standard and 20% of the remaining chocolates among the students of the second
standard. If she still had 240 chocolates, how many did she have initially?
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Answer 1

Answer:

she had 400 chocolates ...... my mouth is watering

Answer 2

Answer:

600

Step-by-step explanation:

let initial be x

class1-

distributed= 25% of x

remaining = x-0.25x

                 =0.75x

class2-

distributed= 0.2 of the remaining

                 = 0.2×0.75x

                 =0.15x

remaining= 0.75x-0.15x

               =0.60x

a\q- remaining still=240

∴0.60x+240=initially having

⇒0.60x+240=x

⇒0.40x=240

⇒x=600

(you can also verify it backwards by taking 600 as initial and then proceeding further as in question.)