CBSE SAMPLE PAPERS : PLUSINFINITY SPECIAL CLASS 8 :CH :2 PART 3

LINEAR EQUATION IN ONE VARIABLE

Q1 . Shuvo buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs 300 per metre and trouser material that costs him Rs 400 per metre.For every 7 meters of the shirt material he buys 10 metres of the trouser material. He sells the materials at 20% and 30% profit respectively. His total sale is Rs 77200. How much trouser material did he buy?

 Q2. 3/5 th of a herd of deer are grazing in the field and three fourths of the remaining are playing nearby. The rest 20 are drinking water from the pond. Find the number of deer in the herd.

9. A grandfather is 17/2 times older than his grandson. He is also 60  years older than her. Find their present ages.

10. Druv’s age is 7/2 times his son’s age. Five years ago he was six times his son’s age. Find their present ages.

 

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