If secA + tanA = x, then find the value of x.
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Which of the following numbers is completely divisible by 99?
In a triangle PQR, ∠PQR = 90 deg, PQ = 10 cm and PR = 26 cm, then what is the value (in cm) of inradius of incircle?
A solid right circular cone of radius 4 cm and height 7 cm is put inside a cylindrical vessel of radius 5 cm and height 8 cm. How much water in cubic cm will be required to fill the cylindrical vessel completely?
A boy buys 5 pencils at Rs 3 each, 3 erasers at Rs 2 each and 3 sharpeners at Rs 5 each. What is the average expenditure (in Rs) per article?
The sum of the ages of husband and wife at present is 60. Four years ago the ratio of their ages was 7:6. What is the age of the husband?
An 80 litre mixture of water and acid contains 20% acid. How much acid should be added to make the acid 60% in the new mixture?
Find the total surface area (in cm2 ) of a hemisphere of diameter 42 cm.
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