Samanya Gyaan Darpan Solutions for Chapter: Practice Set, Exercise 56: Numerical Ability

The average weight of $75$ students in a class was calculated as $45 \mathrm{kg}$. Later it was found that the weight of one of the students was calculated as $42 \mathrm{kg}$ whereas his actual weight was $45 \mathrm{kg}$. What is the actual average weight of the students in the class (in $\mathrm{kg}$)?

Amar purchase $26$ boxes of oranges. Each box contains $12$ dozen oranges. How many oranges does Amar buy?

Deepa has some hens and some goats. If the total number of animal heads is $94$ and the total numbers of animal feet are $260,$ how many hens does Deepa have?

In how many different ways can the letters of the word 'TREAT' be arranged?

What will come in place of the question mark (?) in the following number series?

$6, 12, 24, 48, ?, 192$

$32$ shirt pieces of $120 \mathrm{cm}$ each can be cut from a reel of cloth. After cutting these pieces $80 \mathrm{cm}$ of cloth remains. What is the length of the reel of cloth in metres?

The cost of $15 \mathrm{kg}$ of Rice is $₹675$. The cost of $12 \mathrm{kg}$ of Wheat is $₹432$ and the cost of $8 \mathrm{kg}$ of Corn is $₹224$. What is the total cost of $28 \mathrm{kg}$ of Rice, $23 \mathrm{kg}$ of Wheat and $35 \mathrm{kg}$ of Corn?

$42\%$ of a number is $892.$ What is $73\%$ of that number?