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Of three positive numbers, the ratio of the first and second no is 4:7, that of second and third is 2:3 the product of the first and third is 4200. What is the sum of three numbers?

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Important Questions on Model Practice Set

MEDIUM
CISF Head Constable
IMPORTANT
CISF Head Constable/Min. & HC/Min. Exam Practice Workbook>Chapter 1 - Model Practice Set>ARITHMETIC>Q 38
Three numbers are in the ratio 4:5:6, if the sum of their squares is 1925, then what are the numbers?
EASY
CISF Head Constable
IMPORTANT
CISF Head Constable/Min. & HC/Min. Exam Practice Workbook>Chapter 1 - Model Practice Set>ARITHMETIC>Q 39
The average of N numbers is 21, if a number 57 is removed, then average becomes 17, what is the value of N?
EASY
CISF Head Constable
IMPORTANT
CISF Head Constable/Min. & HC/Min. Exam Practice Workbook>Chapter 1 - Model Practice Set>ARITHMETIC>Q 40
By selling 4 articles for 1 rupee a man gains 25%. Had he sold 2 articles per rupee, then what will be the profit percentage?
EASY
CISF Head Constable
IMPORTANT
CISF Head Constable/Min. & HC/Min. Exam Practice Workbook>Chapter 1 - Model Practice Set>ARITHMETIC>Q 41
An article was sold at 19% gain. Had it been sold for Rs.750 more. Then the gain would have been 34%. What is the cost price of the article?
EASY
CISF Head Constable
IMPORTANT
CISF Head Constable/Min. & HC/Min. Exam Practice Workbook>Chapter 1 - Model Practice Set>ARITHMETIC>Q 42
A number is multiplied by 67 instead of 58. New value is what percent of the desired value?
EASY
CISF Head Constable
IMPORTANT
CISF Head Constable/Min. & HC/Min. Exam Practice Workbook>Chapter 1 - Model Practice Set>ARITHMETIC>Q 43
L is 20% less than M. M is 20% more than N. N is 30% less than P. If P is 2000, then what is the value of L?
EASY
CISF Head Constable
IMPORTANT
CISF Head Constable/Min. & HC/Min. Exam Practice Workbook>Chapter 1 - Model Practice Set>ARITHMETIC>Q 44
The downstream speed of a boat is 17km/hr and the speed of the current is 2 km/hr. What is the total time taken by the boat to cover 65 km upstream and 170 km downstream?
MEDIUM
CISF Head Constable
IMPORTANT
CISF Head Constable/Min. & HC/Min. Exam Practice Workbook>Chapter 1 - Model Practice Set>ARITHMETIC>Q 45
A man goes to a place at a speed of 20 km/hr and comes back at a different speed. If the average speed is 8 km/hr, then what is the return speed?