Dintr-un siloz plin cu porumb s-a vândut în prima lună o cincime din cantitate. A doua lună s-a vândut un sfert din rest s, i au rămas 3360 kg de porumb. Câte kilograme au fost la început?

Total volume = 5,600 kg

Step-by-step explanation:

Given:

Volume of corn remain = 3,360 Kg

Assume;

Total volume = x

Volume sold in 1st month = x/5

Volume sold in 2nd month = [x-x/5][1/4] = x/5

So,

Volume sold in 1st month + Volume sold in 2nd month + Volume of corn remain = Total volume

x/5 + x/5 + 3360 = x

3x = 16,800

x = 5,600 kg

Total volume = 5,600 kg

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.