Question

Mr Connah was 115 kg when he decided to go on a diet. He lost
10°. of his weight in the first month and a further 8% of his
original weight in the second month. How much did he weigh
after 2 months of dieting?​

Answer 1

Answer:  94.3 kg

Given:

• Original Weight = 115 kg
• Lost 10% of weight in 1st month
• Lost 8% of original weight in 2nd month

To Find:

• Weight after 2 months dieting = ?

Solution:

Weight after 1st month of Diet is calculated as:

→ Weight after dieting I = Original Weight - 10% of Original Weight

→ Weight after dieting I = 115 kg - (10/100) × 115 kg

→ Weight after dieting I = 115 kg - 11.5 kg

→ Weight after dieting I = 103.5 kg

Hence weight after 1st month of dieting is 103.5 kg.

Weight after 2nd month of dieting is calculated as:

→ Weight lost after dieting II =  8% of Original Weight

→ Weight lost after dieting II = (8/100) × 115 kg

→ Weight lost after dieting II = 9.2 kg

Hence Weight after second month is: 103.5 - 9.2 = 94.3 kg.

Hence Mr. Connah weighed 94.3 Kg after 2 months of dieting.

Answer 2

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$\blue{\bold{\underline{\underline{Given:}}}}$

Original Weight = 115 kgLost 10% of weight in 1st monthLost 8% of original weight in 2nd month

$\blue{\bold{\underline{\underline{To Find:}}}}$

Weight after 2 months dieting = ?

$\huge \bf \colorbox{red}{}Solution:$

Weight after 1st month of Diet is calculated as:

→ Weight after dieting I = Original Weight - 10% of Original Weight

→ Weight after dieting I = 115 kg - (10/100) × 115 kg

→ Weight after dieting I = 115 kg - 11.5 kg

→ Weight after dieting I = 103.5 kg

Hence weight after 1st month of dieting is 103.5 kg.

Weight after 2nd month of dieting is calculated as:

→ Weight lost after dieting II =  8% of Original Weight

→ Weight lost after dieting II = (8/100) × 115 kg

→ Weight lost after dieting II = 9.2 kg

Hence Weight after second month is: 103.5 - 9.2 = 94.3 kg.

Hence Mr. Connah weighed 94.3 Kg after 2 months of dieting.

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Step-by-step explanation: