Question
Kiran spent 12% of his monthly income on education, 28%
on entertainment, 15% on rent, 30% on travelling and the rest on savings. If the difference between the amount spent on travelling and the amount spent on savings is Rs. 5400, then find the amount spent on entertainment.Solution
ATQ, Let monthly income of Kiran be Rs. ‘x’ Amount spent on education = Rs. 0.12x Amount spent on entertainment = Rs. 0.28x Amount spent on rent = Rs. 0.15x Amount spent on travelling = Rs. 0.30x Amount spent on savings = x – (0.12x + 0.28x + 0.15x + 0.30x) = Rs. 0.15x According to the question, 0.30x – 0.15x = 5400 0.15x = 5400 x = Rs. 36,000 Amount spent on entertainment = 28% of 36,000 = Rs. 10,080
In which type of wave do the particles of the medium vibrate perpendicular to the direction of wave propagation?
A particle is fired with initial speed 30 m/s and lands back at same horizontal level. If its horizontal range is equal to 4.5 times the vertical height...
If a force is applied to two stationary objects with different masses for the same duration, what will be the same for both objects?
Let the electric field part of an electromagnetic wave is E = {(2.3 N/C) cos [(1.2 rad/m) y + (2.4 × 108 rad/s)t]} î.
Compute the...
What does Ohm's Law state?
An object is projected vertically upward from Earth's surface with speed
v 0 = √(GM/1.5R). The maximum height reached from the center of E...
If resistances R,2R,4R,8R… are connected in parallel, the equivalent resistance is:
Two sound waves have frequencies 256 Hz and 260 Hz. The beat frequency is:
Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by –
Which physical quantity has unit “Joule/second”?