Mathematics Mcqs — Test 11
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Question 1
If the height of a pole is 2√3 metres and the length of its shadow is 2 metres, find the angle of elevation of the sun.
Question 2
From a point P on a level ground, the angle of elevation of the top of a tower is 30°. If the tower is 100 m high, the distance of point P from the foot of the tower is :_________?
Question 3
The angle of elevation of the sun, when the length of the shadow of a tree is √3 times the height of the tree, is :________?
Question 4
The top of a 15 metre high tower makes an angle of elevation of 60° with the bottom of an electric pole and angle of elevation of 30° with the top of the pole. What is the height of the electric pole ?
Question 5
An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes :_________?
Question 6
What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years ?
Question 7
A sum of money trebles itself in 15 years, 6 months. In how many years would it double itself ?
Question 8
Find the one which does not belong to that group ?
Question 9
A and B started business in partnership investing Rs. 20,000 and Rs. 15,000 respectively. After six months, C joined them with Rs. 20,000. What will be B’s share in the total profit of Rs. 25,000 earned at the end of 2 years from the starting of the business?
Question 10
Ameen started a business investing Rs. 70,000. Rahim joined him after six months with an amount of Rs. 1,05,000 and sameer joined them with Rs. 1.4 lakhs after another six months. The amount of profit earned should be distributed in what ratio among Ameen, Rahim and Sameer respectively, 3 years after Ameen started the business?