Question

number x is increased by 40% it become 840 then the value of x​

Answer 1

answer-

x increased by 40% is 840

so, x+40x/100=840

x+4x/10 = 840

x+2x/5=840

5x/5+2x/5 = 840

7x/5=840

7x=840*5

x= 840*5/7

we will divide 840 by 7 and hence get 120

so, x = 120*5

x= 600

hope it helps

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