Ex – 10.2 Que No. 1
Ex – 10.2 Que No. 1 Q.1) Express the following numbers in standard form Solution:-
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Concepts / Formula’s
Comparing Quantities – Concepts / Formula’s What is Ratio:- A ratio is a relationship in quantity or degree between two things. What is Percentage:- A percentage is a ratio, fraction, or portion of a whole which is represented as 100. What is Discount:- A reduction made from a regular price or marked price. What is Cost Price:-
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Ex – 7.1 Que No. 6
Ex – 7.1 Que No. 6 Q.6) If 60% people in a city like cricket, 30% like football and the remaining like other games, then what per cent of the people like other games? If the total number of people is 50 lakh, find the exact number who like each type of game. Solution:-
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Ex – 9.3 Que No. 8
Ex – 9.3 Que No. 8 Q.8) Water is pouring into a cubiodal reservoir at the rate of 60 litres per minute. If the volume of reservoir is 108 m3 , find the number of hours it will take to fill the reservoir. Solution:-
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Ex – 9.3 Que No. 7
Ex – 9.3 Que No. 7 Q.7) If each edge of a cube is doubled Solution:-
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Ex – 9.3 Que No. 6
Ex – 9.3 Que No. 6 Q.6) A milk tank is in the form of cylinder whose radius is 1.5 m and length is 7 m. Find the quantity of milk in litres that can be stored in the tank? Solution:-
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Ex – 9.3 Que No. 5
Ex – 9.3 Que No. 5 Q.5) Find the height of the cylinder whose volume is 1.54 m3 and diameter of the base is 140 cm ? Solution:-
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Ex – 9.3 Que No. 4
Ex – 9.3 Que No. 4 Q.4) A cuboid is of dimensions 60 cm × 54 cm × 30 cm. How many small cubes with side 6 cm can be placed in the given cuboid? Solution:-
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Ex – 9.3 Que No. 3
Ex – 9.3 Que No. 3 Q.3) Find the height of a cuboid whose base area is 180 cm2 and volume is 900 cm3 ? Solution:-
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