Q.1 Find 16% of 25 liters.
Q.2 Find 120% of 20kg.
Q.3 Find 3 % of km
Q.4 Find 20% less than Rs.70
Q.5 Find 10% more than Rs.90
Q.6 Express 18 hours as a percent of 3 days.
Q.7 Sarita secures 84% marks in Hindi paper. If the maximum marks in the paper are 150. Find the marks secured by her in the paper.
Q.8 In an election , out of 75000 voters , 5000 cast their votes. What was the percentage of people casting their votes?
Q.9 A basket contains 350 eggs. If 12% of the eggs were rotten, Find the number of eggs , good enough to be sold.
Q.10 Rohit obtained 45 marks out of 80. What percentage marks did he get?
Q.11 Write each in product form:-
(a) 4a3
(b) 10x3y3z2
(c) 7p2q2
Q.12 Write in exponential form:-
(a) 17 X bX b X c X c X c
(b) 13 X p X q X q X q X r X r
(c) 7 X a X a X a X - - - - - - - - 17 times
Q.13 Add:-
(a) 17x2 + 2y2 + 3xy , -9x2 + 11y2 – 3xy and 12x2 – 7y2 + 6xy
(b) –a2 + b2 – 2abc , -3a2 – 2b2 + 4abc and 4a2 + 3b2 – 4abc
Q.14 Subtract 6x2 – 6y2 + 7xy from 0
Q.15 Subtract:-
(a) 7x – 3y from 7x + 3y
(b) -6x2 + 7y2 + 2xy from 6x2 – 7y2 – 3xy
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