Decrease $245$ kg by $7 : 4$

140

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

190

No worries! We‘ve got your back. Try BYJU‘S free classes today!

150

No worries! We‘ve got your back. Try BYJU‘S free classes today!

130

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $140$
Let the new quantity be x
$∴ \frac{Original quantity}{New quantity}$
$\frac{245}{x} = \frac{7}{4}$
$∴ x = 140$
Hence, on decreasing $245$ by $4 : 7$ we get $140$ kg.

Suggest Corrections

Similar questions

If the median of the following data is 166.79, then the mean and mode are

154

Classes	$120 - 130$	$130 - 140$	$140 - 150$	$150 - 160$	$160 - 170$	$170 - 180$
Frequency	$2$	$8$	$12$	$f$	$8$	$7$

Marks	$100 - 110$	$110 - 120$	$120 - 130$	$130 - 140$	$140 - 150$
Frequency	$4$	$6$	$5$	$3$	$2$

\begin{matrix} Weight(in~kg) & 100 - 110 & 110 - 120 & 120 - 130 & 130 - 140 & 140 - 150 Number of wrestlers & 4 & 14 & 21 & 8 & 3 \end{matrix}

Join BYJU'S Learning Program