Question

A number, when increased by 40 % gives 84 . The number is? *​

Answer 1

Answer:

the number is 60

Step-by-step explanation:

let the no. be x

x+(40/100)x=84

(100x+40x)/100=84

140x/100=84

140x=84*100

140x=8400

x=8400/140

x=60

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Answer 2

Answer:

40 cm²

40 cm²Step-by-step explanation:

40 cm²Step-by-step explanation:We know that perimeter of a rectangle (box) is 2(l+b)

40 cm²Step-by-step explanation:We know that perimeter of a rectangle (box) is 2(l+b)Length of the box = 8cm

40 cm²Step-by-step explanation:We know that perimeter of a rectangle (box) is 2(l+b)Length of the box = 8cmBreadth of the box = 12cm