Question
What is the reason for twinkling of
stars?Solution
Seismometers are instrument that measures motion of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions and other seismic sources. Records of seismic waves allow seismologists to map the interior of the earth and locate and measure the size of these different sources. Seismograph is another Greek term meaning to draw siesmo waves.
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The numerator of a fraction is 9 less than its denominator. If the numerator is decreased by 4 and the denominator is increased by 2, then the denominat...
The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
The value of
a, b and c are three integers. The sum of a and b is 61. If b is divided by a then the quotient is 2 and the remainder is 7. If cn - 2 is lar...
A person had to multiply two numbers. Instead of multiplying by 46, the person multiplied by 64, and the product went up by 360. What is the raised pro...
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42, 38, 45, 50, 48, 52, 47, 46, 44 Let ‘x’ be the least number divisible by 9, 12, 16, 18 and 20, and also ‘x’ is a perfect square. Find the remainder when ‘x’ is divided by 9...
The number of toy airplanes sold by shop B is 25% more than the number of toy helicopters sold by the same shop. If the ratio of number of toy gliders s...
Find the range of the given data:
18, 23, 36, 41, 55, 12, 62, 50, 48
