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Syllabus
Q. By selling 45 lemons for Rs. 40, a man loses 20%. How many should he sell for Rs. 24 to gain 20% on the transaction?
Q. Rajni sold a pressure cooker at a loss of 8%. Had she bought it at 10% less and sold for Rs. 176 more, she would have gained 20%. Find the cost price of the pressure cooker.
Q. A man sold a toaster at a profit of 10%. Had he purchased it for 5% less and sold it for Rs. 56 more, he could have gained 25%. For how much did he buy it?
Q. A shopkeeper sells each of his goods at a gain of 22 1/2%. If on any day, his total sale was of Rs. 9,408, what was (i) the total cost of all the goods sold on that day (ii) his profit of that day.
45(x4- 3x3- 28x2) by 9x(x+4)
please answer
Q. Factorise the following
1. 12x2 - x - 35
2. 10p2q2 - 21pq + 9
1. 12x2 - x - 35 2. 10p2q2 - 21pq + 9
8. Two candidates contested an election. One of them secured 58% votes and won the election by a margin of 2560 votes. How many votes were polled in all?
10. What is the factor of : ab(a-b)+bc(bc(b-c) +ca(c-a)
a. (a-b)(b-c)(c+a)
b. -(b+c)(c-a)(a-b)
c. (a-b)(a-c)(b-c)
d. - (a+b)(b+c)(a-c)
a^8+a^4b^4+b^8
10pq-3rq-10ps+3rs
(i) 3x^5-18x^4-48x^3
(ii) -2x^3+22x^2+24x
1. Find the cube root of each of the following numbers by prime factorisation method.
(i) 64 (ii) 512 (iii) 10648 (iv) 27000 (v) 15625 (vi) 13824 (vii) 110592 (viii) 46656 (ix) 175616 (x) 91125
Q11. 14(3y − 5z)3 + 7(3y − 5z)2
a^2 - 23a - 108
plz answer fast....
____ - 12x + 9
16. Factorize: 15(2x – 3y)2 – 4(4x – 6y) – 16