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Number Theory Level 1

Find the value of 100 × ( 1.5 × 1.2 ) 100\times (1.5\times 1.2)

Please don't use a calculator!


The answer is 180.

Sravanth C. by Sravanth C. , 21, India

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4 solutions

Jean Paul Filpo
Mar 11, 2015

3 Helpful 0 Interesting 0 Brilliant 0 Confused
Mohammad Khaza
Aug 1, 2017

the calculation can be done in this way \text{the calculation can be done in this way} ---

1.2 × 100 = 120 1.2 \times 100=120

then, 120 × 1.5 = 180 120 \times 1.5 =180

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Jahnvi Verma
Mar 11, 2015

100(1.5*1.2) =100(1.8) =180

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Ashish Menon
May 31, 2016

100 × ( 1.5 × 1.2 ) = 190 × 1.8 = 180 100 × (1.5 × 1.2) = 190 × 1.8 = \color{#69047E}{\boxed{180}} .

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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