A bag contains Rs 11,400 in the form of corrency notes of Rs 100, Rs 50 and Rs 10 in the ratio 3 : 4 : 10. How many notes are there of Rs 50?

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Solution

The correct option is A 76
Let the number of currency notes of Rs 100 Rs 50 Rs 10 be 3x, 4x and 10x respectively
$∴ 3 x \times 100 + 4 x \times 50 + 10 x \times 10 = 11400$
$\Rightarrow 300 x + 200 x + 100 x = 11400$
\Rightarrow 600x=11400$
$\Rightarrow x = 19$
So 50 rupee note = $4 \times 19 = 76$

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A bag contains Rs 11,400 in the form of corrency notes of Rs 100, Rs 50 and Rs 10 in the ratio 3 : 4 : 10. How many notes are there of Rs 50?

The correct option is A 76Let the number of currency notes of Rs 100 Rs 50 Rs 10 be 3x, 4x and 10x respectively∴3x×100+4x×50+10x×10=11400⇒300x+200x+100x=11400\Rightarrow 600x=11400$⇒x=19So 50 rupee note =4×19=76