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Shyama purchases a scooter costing Rs 36,450 and the rate of sales tax is 9%, then the total amount paid by her is: (a) Rs 36,490.50 (b) Rs 39,730.50 (c) Rs 36,454.50 (d) Rs 33,169.50

Answer: (b) Rs 39,730.50 Since sales tax is charged on the sale of an item by the government and is added to the bill amount. Given Shyama... View Article

For calculation of interest compounded half yearly, keeping the principal same, which one of the following is true. (a) Double the given annual rate and half the given number of years. (b) Double the given annual rate as well as the given number of years. (c) Half the given annual rate as well as the given number of years. (d) Half the given annual rate and double the given number of years.

Answer: (d) Half the given annual rate and double the given number of years. Compound interest is the interest calculated on the principal and... View Article

Ashima took a loan of Rs 1,00,000 at 12% p.a. compounded half-yearly. She paid Rs.1,12,360. If (1.06)2 is equal to 1.1236, then the period for which she took the loan is: (a) 2 years (b) 1 year (c) 6 months (d) 1(1/2) years

Answer: (b) 1 year Compound interest is the interest calculated on the principal and the interest accumulated over the previous period. The... View Article

If a % is the discount per cent on a marked price x, then discount is (a) (x/a) × 100 (b) (a/x) × 100 (c) x × (a/100) (d) 100/(x × a)

Answer: (c) x × (a/100) Discount Rate is the price of the total quantity/amount usually less than its original value. Marked price is the... View Article

To gain 25% after allowing a discount of 10%, the shopkeeper must mark the price of the article which costs him Rs 360 as (a) Rs 500 (b) Rs 450 (c) Rs 460 (d) Rs 486

Answer: (a) Rs 500 Let us consider Marked price = x Cost price = Rs.360 As per the question x – [x × (10/100)] – [(25 ×... View Article

If 90% of x is 315 km, then the value of x is (a) 325 km (b) 350 km (c) 350 m (d) 325 m

Answer: (b) 350 km Given : 90% of x is 315 km Need to find the value of x x = 350... View Article

If marked price of an article is Rs 1,200 and the discount is 12% then the selling price of the article is (a) Rs 1,056 (b) Rs 1,344 (c) Rs 1,212 (d) Rs 1,188

Answer: (a) Rs 1,056 Given Marked price = Rs.1200 Discount = 12% Since, Discount = Discount% on Marked price Discount price = 12% of 1200 =... View Article

The compound interest on Rs 50,000 at 4% per annum for 2 years compounded annually is (a) Rs 4,000 (b) Rs 4,080 (c) Rs 4,280 (d) Rs 4,050

Answer: (b) Rs 4,080 Given P = Rs.50000 R = 4% T = 2 years Compound interest is the interest calculated on the principal and the interest... View Article

Suppose a certain sum doubles in 2 years at r % rate of simple interest per annum or at R% rate of interest per annum compounded annually. We have (a) r < R (b) R < r (c) R = r (d) can’t be decided

Answer: (b) R < r When the total amount received in two years is the same for both simple and compound interest on the same principal, the... View Article

Suppose for the principal P, rate R% and time T, the simple interest is S and compound interest is C. Consider the possibilities. (i) C > S (ii) C = S (iii) C < S Then: (a) only (i) is correct. (b) either (i) or (ii) is correct. (c) either (ii) or (iii) is correct. (d) only (iii) is correct.

Answer: (a) only (i) is correct. Let Principal (P) = Rs. 100 Rate = 10% Time = 2 year Simple interest (SI)= (P × R × T)/100 SI =... View Article

Archives

Shyama purchases a scooter costing Rs 36,450 and the rate of sales tax is 9%, then the total amount paid by her is: (a) Rs 36,490.50 (b) Rs 39,730.50 (c) Rs 36,454.50 (d) Rs 33,169.50

Ashima took a loan of Rs 1,00,000 at 12% p.a. compounded half-yearly. She paid Rs.1,12,360. If (1.06)2 is equal to 1.1236, then the period for which she took the loan is: (a) 2 years (b) 1 year (c) 6 months (d) 1(1/2) years

If a % is the discount per cent on a marked price x, then discount is (a) (x/a) × 100 (b) (a/x) × 100 (c) x × (a/100) (d) 100/(x × a)

To gain 25% after allowing a discount of 10%, the shopkeeper must mark the price of the article which costs him Rs 360 as (a) Rs 500 (b) Rs 450 (c) Rs 460 (d) Rs 486

If 90% of x is 315 km, then the value of x is (a) 325 km (b) 350 km (c) 350 m (d) 325 m

If marked price of an article is Rs 1,200 and the discount is 12% then the selling price of the article is (a) Rs 1,056 (b) Rs 1,344 (c) Rs 1,212 (d) Rs 1,188

The compound interest on Rs 50,000 at 4% per annum for 2 years compounded annually is (a) Rs 4,000 (b) Rs 4,080 (c) Rs 4,280 (d) Rs 4,050

Suppose a certain sum doubles in 2 years at r % rate of simple interest per annum or at R% rate of interest per annum compounded annually. We have (a) r < R (b) R < r (c) R = r (d) can’t be decided

Suppose for the principal P, rate R% and time T, the simple interest is S and compound interest is C. Consider the possibilities. (i) C > S (ii) C = S (iii) C < S Then: (a) only (i) is correct. (b) either (i) or (ii) is correct. (c) either (ii) or (iii) is correct. (d) only (iii) is correct.

Factorised form of 18mn + 10mnp is ________.

Common factor of ax2 + bx is __________.

The product of two polynomials is a ________.

(x + a) (x + b) = x² + (a + b) x + ________.

(a + b)² – 2ab = _ + __

(a – b)² + ____________ = a² – b²

a² – b²= (a + b ) __________.

(a – b) _________ = a² – 2ab + b²

a (b + c) = a × + a × _.

The product of two terms with unlike signs is a ____ term.

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