The average wage of a group of 20 labourers is Rs. 450. If 4 persons receiving average wage of Rs. 500 leave the group and 2 persons receiving average wage of Rs. K join the group, then the average wage of the group increases by Rs. 45. Find the value of ‘K’.
Total wage of 20 labourers in the initial group = 20 × 450 = Rs. 9000 New average wage of the group = 450 + 45 = Rs. 495 New number of labourers in the group = 20 – 4 + 2 = 18 So, according to the question, 9000 – 4 × 500 + 2K = 495 × 18 Or, 9000 – 2000 + 2K = 8910 Or, 7000 + 2K = 8910 Or, 2K = 8910 – 7000 = 1910 Or, K = (1910/2) = 955
What is the primary goal of watershed Management?
What is the primary function of chlorophyll in Plants?
Seeds are formed but the embryos develop without fertilization in
Mealy bug is the major pest of:
Which of the following is NOT a key practice in Natural Farming?
Late blight and early blight of tomato is caused by which organism?
The size of the clay particles is:
Which of the following is not matched correctly?
Certain crops are particularly vulnerable to parasitic plants that derive nutrients from their hosts. Among the following options, which weed is known a...
In C4 plants, the primary carboxylation takes place by using ___ enzyme