Mathematics Quiz with Answers
In △ABC, D and E are points on the sides AB and AC, respectively, such that DE || BC and DE: BC=6:7. (Area of △ ADE): (Area of trapezium BCED) = ?
(A) 49 : 13
(B) 13 : 36
(C) 13 : 49
(D) 36 : 13
Correct Answer : D
The ratio of the monthly incomes of X and Y is 5: 4 and that of their monthly expenditures is 9: 7. If the income of Y is equal to the expenditure of X, then what is the ratio of the savings of X and Y?
(A) 9 : 8
(B) 6 : 7
(C) 8 : 9
(D) 7 : 6
Correct Answer : A
Let x be the greatest number which when divides 955, 1027, 1075, the remainder in each case is the same. Which of the following is NOT a factor of x?
(A) 4
(B) 16
(C) 8
(D) 6
Correct Answer : B
if 2x2 – 7x + 5 =0, then what is the value of $$x^2+{25\over 4x^2}$$
(A) $$5{1\over 2}$$
(B) $$7{1\over 4}$$
(C) $$9{1\over 2}$$
(D) $$9{3\over 4}$$
Correct Answer : B
Raju ate $$3\over 8$$part of a pizza and Adam ate $$3\over 10$$ part of the remaining pizza. Then Renu ate $$4\over 7$$ part of the pizza that was left. What fraction of the pizza is still left?
(A) $$5\over 12$$
(B) $$1\over 4$$
(C) $$1\over 8$$
(D) $$3\over 16$$
Correct Answer : D
Pipes A and B can fill a tank in 12 minutes and 15 minutes, respectively. The tank when full can be emptied by pipe C in x minutes. When all the three pipes are opened simultaneously, the tank is full in 10 minutes. The value of x is:
(A) 18
(B) 15
(C) 20
(D) 24
Correct Answer : C
A secant PAB is drawn from an external point P to the circle with centre O, intersecting it at A and B. If OP = 17 cm, PA = 12 cm and PB = 22.5 cm, then the radius of the circle is:
(A) $$ 2\sqrt {3} \ $$ cm
(B) $$ \sqrt {19} \ $$ cm
(C) $$ \sqrt {17} \ $$ cm
(D) $$ 3\sqrt {3} \ $$ cm
Correct Answer : B
In △ABC, M and N are the points on side BC such that AM ⊥ BC, AN is the bisector of ∠A, and M lies between B and N. If ∠B = 68°, and ∠C=26°, then the measure of ∠MAN is:
(A) 21°
(B) 28°
(C) 24°
(D) 22°
Correct Answer : A
A drink of chocolate and milk contains 8% pure chocolate by volume. If 10 litres of pure milk are added to 50 litres of this drink, the percentage of chocolate in the new drink is:
(A) $$6{2\over 3}$$
(B) $$5{2\over 3}$$
(C) $$5{1\over 3}$$
(D) $$6{1\over 3}$$
Correct Answer : A
In a quadrilateral ABCD, E is a point in the interior of the quadrilateral such that DE and CE are the bisectors of ∠D and ∠C, respectively. If ∠B = 82° and ∠DEC = 80°, then ∠A = ?
(A) 75°
(B) 81°
(C) 84°
(D) 78°
Correct Answer : D