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The error is in part 'B' and 'D' of the sentence. In part 'B' use of 'have'(plural auxiliary verb) is incorrect and needs to be replaced by singular auxiliary verb 'has'( in 'have revolutionised') as the sentence talks about a single approach. In option 'D' use of 'relevantly more' is contextually incorrect and needs to be replaced by 'more relevant' which suggests that field-work based approach has made economics more relevant in policy making. Hence, the answer is option b).
The population of the town is 270,000 4/9th of them are males and the rest are females. 50% males and 40% females are married. Find the percentage of th...
'P' spends 25% of his monthly income on travel expenses and 50% of the remaining amount on groceries. If he saved Rs. 9000 after ...
B invests 20% of his monthly salary on Travelling and 20% of remaining on Food. Again, he invested 25% of the remaining (after travelling and food expen...
A student multiplied a number by 8/5 instead of 5/8. What is the percentage error in the calculation?
Suyash have total amount of Rs.3200 out of which, he spent 35% on food, 45% of the rest on travelling. Out of remaining amount he spends Rs.540 on misce...
Two persons A and B started working for a company in similar jobs on January 1, 1990. A's initial monthly salary was Rs 400, which increases by Rs 50 af...
A scored 20% more than B. If both score 4 marks more than the sum of the marks scored by A and B together would have been 20% more than the passing mar...
In a lock-making factory, 10 percent of the total produced locks were found to be defective, and 80 percent of the non-defective locks were exported. ...