What is the sum of the first 11 terms of an arithmetic progression if the 4th term is 11 and the 7th term is -4?
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Curved surface area of a cylinder is 440 sq cm. If circumference of its base is 44 cm, what is the volume of the cylinder? (Take π = 22/7)
In what ratio wheat costing Rs 17/kg mixed with another wheat costing Rs 12/kg to get a mixture costing Rs 13.5/ kg?
For the figure given below, find the value (in degrees) of 2∠A + ∠B.
A number is greater than twice its reciprocal by 31/4. Find the number.
The simple interest on a sum for 5 years is twofifth of the sum. The rate of interest per annum is
ΔPQR is right angled at Q. If cosecP = 25/24, then what is the value of cotR ?
An angle is smaller than its supplementary by 30°. What is the measure of the angle?