Question

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Answer 1

7)

a) The highest common factor 72 and 9 is 9.

The lcm of 9 and 72 is 72.

b) The highest common factor 12 and 108 is 12.

The lcm of 12 and 108 is 108.

8)

Let the two numbers be x and y.

x=120...(given)

Therefore, x+y=450

120+y=450

y=450-120

y=330

The product of two numbers:

xy=120×330=39,600

9)

a) 5632÷14=402.28

Verify= 402.28×14=5631.9(approx. 5632)

b) 2791÷17=164.17

Verify= 164.17×17= 2790.8(approx. 2791)

10)

1 box= 345 fruits

154 boxes= 345×154=53,130

Therefore, there are 53,130 fruits in 154 boxes.

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