Question

If 14 kg of pulses cost Rs. 882 what is the cost of 22 kg of pulses?
(a) $Rs.1254$
(b) $Rs.1298$
(c) $Rs.1342$
(d) $Rs.1386$

Answer 1

Hint: We have given the cost of 14 kg pulses as Rs. 882 and we are asked to find the cost for 22 kg of pulses which we are going to find by calculating the cost of 1 kg pulses. Cost of 1 kg pulses is found by dividing 882 to 14. After getting the cost of 1 kg pulses we are going to multiply this cost by 22 and then compare the answer with the options given below.

Complete step by step answer:
The cost of 14 kg pulses is given as Rs. 882 and we have to find the cost of 22 kg of pulses. First of all, we are going to find the cost of 1 kg pulses by unitary method. In the unitary method, we know the cost of 14 kg pulses and we can find the cost of 1 kg pulses by dividing 882 by 14.
Cost of 1 kg pulses $=\dfrac{882}{14}=Rs.63$
We know the cost of 1 kg pulses so to know the cost of 22 kg pulses we are going to multiply the above cost by 22.
Cost of 22 kg pulses $=63\times 22=Rs.1386$
Hence, we have calculated the cost of 22 kg pulses as Rs. 1386.

So, the correct answer is “Option D”.

Note: In the above question, the units of pulses are same like we have given cost for 14 kg and asked for the cost of 22 kg so as you can see that units of weight of the pulses are same which is kg but in some other questions, you might find that you would have asked the cost for 25000 grams of pulses so here you have to convert the units from grams to kg and then find the cost for 25000 grams of pulses.