For the following questions answer them individually
In triangle ABC, ∠BAC = 75°, ∠ABC = 45°. BC is produced to D. If ∠ACD = x°, then X/3 % of 60° is
Out of four numbers, the average of the first three is 15 and that of the last three is 16. If the last number is 19, the first is
In a family of 5 members, the average age at present is 33 years. The youngest member is 9 years old. The average age of the family just before the birth of the youngest member was
A dishonest dealer professes to sell his goods at the cost price but uses a false weight of 850 g instead of 1 kg. His gain percent is
In a college, 40% of the students were allotted group A, 75% of the remaining were given group B and the remaining 12 students were given group C. Then the number of students who applied for the groups is
A train 150 metres long crosses a milestone in 15 seconds and crosses another train of the same length travelling in the opposite direction in 12 seconds. The speed of the second train in km/hr is
A person can row a distance of one km upstream in ten minutes and downstream in four minutes. What is the speed of the stream ?
A certain sum of money will be doubled in 15 years at what rate of simple interest percent per annum?
In an isosceles triangle, if the unequal angle is twice the sum of the equal angles, then each equal angle is
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