List of Mathematical Series Questions for Practice
If $$ {a^4+1}={{a^2}\over{b^2}}{(4b^2-b^4-1)}$$,then what is the value of $${a^4+b^4}$$?
(A) 16
(B) 2
(C) 32
(D) 64
Correct Answer : B
Δ ABC is a right angled triangle whose angle A is right angled. Which side needs to bisect to form two other right angled triangles?
(A) AB
(B) BC
(C) AC
(D) None of these
Correct Answer : B
QA and PB are perpendicular to AB in the given figure. If AO = 10 cm, BO = 6cm, BP = 9 cm, then the length of AQ is__
(A) 12 cm
(B) 15 cm
(C) 18 cm
(D) 21 cm
Correct Answer : B
A school play ground is 120 m long and 80 m wide, there is 2 m wide path parallel to its width and and Parallel to its length. The area of remaining ground.
(A) $$ {9210 {meter^2}}$$
(B) $$ {9286 {meter^2}}$$
(C) $$ {9204 {meter^2}}$$
(D) None of these
Correct Answer : D
Three circles of radius 3.5 cm each are placed in such a way that each touches the other two. The area of the portion enclosed by the circles is
(A) $$19.68 \ cm^2$$
(B) $$21.22 \ cm^2$$
(C) $$1.975 \ cm^2$$
(D) $$1.967 \ cm^2$$
Correct Answer : D
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