Total no. of marks scored in science subject =32100× 300 =96 % of marks scored by student in language =x marks =x100× 200=2x Total mark ...

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Standard VII

Mathematics

Percentage of a Number

A student sco...

Question

A student scored $32$ % marks in science subjects out of $300$ . How much should he score in language papers out of $200$ if he is to get overall $46$ % marks?

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Solution

Total no. of marks scored in science subject
$= \frac{32}{100} \times 300$
$= 96$
$%$ of marks scored by student in language $= x$
marks $= \frac{x}{100} \times 200 = 2 x$
Total marks $= 300 + 200 = 500$
$96 + 2 x = \frac{46}{100} \times 500$
$96 + 2 x = 230$
$2 x = 134$
$x = 62$

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A student scored 32% marks in science subjects out of 300. How much should he score in language papers out of 200 if he is to get overall 46% marks?

Total no. of marks scored in science subject=32100×300=96% of marks scored by student in language =xmarks =x100×200=2xTotal marks =300+200=50096+2x=46100×50096+2x=2302x=134x=62

A student scored $32$ % marks in science subjects out of $300$ . How much should he score in language papers out of $200$ if he is to get overall $46$ % marks?

Total no. of marks scored in science subject
$= \frac{32}{100} \times 300$
$= 96$
$%$ of marks scored by student in language $= x$
marks $= \frac{x}{100} \times 200 = 2 x$
Total marks $= 300 + 200 = 500$
$96 + 2 x = \frac{46}{100} \times 500$
$96 + 2 x = 230$
$2 x = 134$
$x = 62$