For the following questions answer them individually
The total surface area of a hemisphere is 1848 sq cm, what is its radius? (Take π = 22/7)
Points P and Q lies on side AB and AC of triangle ABC respectively such that segment PQ is parallel to side BC. If the ratio of areas of triangle APQ and triangle ABC is 9:16, then what is the ratio of AP:PB?
x and y are two numbers such that their mean proportion is 6 and third proportion is 48. What is the value of x and y?
The mean of marks secured by 55 students in division-A of class X is 55, 45 students of division-B is 51 and that of 40 students of division-C is 49. What is the mean of marks of the students of three divisions of Class X?
One diagonal of a rhombus is half the other. If the length of the side of the rhombus is 10 cm, what is the area of the rhombus?
P and Q can finish a work in 24 and 12 days respectively. In how many days can they complete 50% of the work if they work together?
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