Start learning 50% faster. Sign in now
Speed of child = 60 m/s Speed of sound of Bomb = 640 m/s Distance travelled by child in 58 seconds = (60 × 58) m The time taken by the sound of blast to be listened by him T = D/S = (60 ×58)/(Relative Speed ) = (60 ×58)/((640-60)) = (60 ×58)/580 = 6 seconds
What is the unit digit of (217)413 × (819)547 × (414)624 × (342)812?
If the numerator of a fraction is increased by 60% and the denominator is decreased by 20%, then the value of the fraction becomes 21/16. Then tell the ...
25% of a number exceeds 1/6th of the same number by 7. What is the number?
What is the ratio of the sum of the squares of the first 8 natural numbers to the sum of the first 12 odd natural numbers?
What is the value of 1² + 3² + 5² + 7² + 9² ................ 19²?
A school organizes a picnic for students. The cost of transportation is ₹8,000, and the food cost is ₹5,000. If there are 50 students attending the ...
If the sum of x , y , and z is 9, and the sum of their squares is 18, then determine the value of the expression xy + yz + zx .
An integer with positive sign (+) is always greater than
A number when divided by 315 leaves remainder 46 and the value of quotient is 7. Find the number.