Latest Posts

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... 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.... 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... 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 \(\begin{array}{l}x... 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... 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... 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... 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... View Article

Factorised form of 18mn + 10mnp is ________.

Answer: Factorised form of 18mn + 10mnp is 2mn (9 + 5p) In Mathematics, factorization or factoring is defined as... View Article

Common factor of ax2 + bx is __________.

Answer: Common factor of ax2 + bx is x(ax + b) Common factor Common factors are defined as factors that... View Article

The product of two polynomials is a ________.

Answer: The product of two polynomials is a polynomial. Polynomials Polynomials are algebraic expressions that consist of variables and coefficients.... View Article

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

Answer: (x + a) (x + b) = x2 + (a + b) x + ab (x + a) (x... View Article

(a + b)² – 2ab = _ + __

Answer: (a + b)2 – 2ab = a2 + b2 (a + b)2 – 2ab = a2 + 2ab +... View Article

(a – b)² + ____________ = a² – b²

Answer: (a – b)2 + (2ab – 2b2) = a2 – b2 (a – b)2 + (2ab – 2b2) =... View Article

a² – b²= (a + b ) __________.

Answer: a2 – b2 = (a + b)(a – b) Important standard algebraic formula a2 – b2 = (a –... View Article

(a – b) _________ = a² – 2ab + b²

Answer: (a – b)(a – b) = a2 – 2ab + b2 (a – b) (a – b) = (a... View Article

a (b + c) = a × + a × _.

Answer: a (b + c) = a × b + a × c Distributive property Distributive property explains that the... View Article

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

Answer: The product of two terms with unlike signs is a negative term. Let us assume two, unlike sign terms,... View Article

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

Answer: The product of two terms with like signs is a positive term. Example 1: Let us assume two terms... View Article

The value of (a + b)²– (a – b)² is (a) 4ab (b) – 4ab (c) 2a² + 2b² (d) 2a² – 2b²

Answer: (a) 4ab The value of (a + b)2 is (a + b)2 = (a2 + b2 + 2ab) The... View Article

«
1
…
1,095
1,096
1,097
1,098
1,099
…
5,472
»