Question

A machine can make 960 bottles in 3 hours. How many bottles can be made in 8 hours ?​

Answer 1

Answer:

unitary method

960 bottles in 3 hrs

in 1 hr = 960/3 = 320

320 in 1 hr so in 8 hrs = 320 × 8

2560 bottles

Step-by-step explanation:

2560 bottles

Answer 2

[Refer the attachment first]

• Let the number of bottles filled = a

• The ratio of hours and bottles are in direct proportion.

Gives,

$\sf{\implies \dfrac{960}{3}=\dfrac{a}{8}}$

$\sf{\implies 3a=960\times 8}$

$\sf{\implies 3a=7680}$

$\sf{\implies a=\dfrac{7680}{3}}$

$\sf{\implies a=2560}$

Therefore,

$\boxed{\sf{\therefore 2560 \ bottles \ can \ be \ filled \ in \ 8 \ hours.}}$