Find the HCF of (3125-1) and (335-1). a) 35 - 1 b) 312 - 1 c) 34 - 1
View QuestionThe sum of the digits of two-digit number is 10, while when the digits are reversed, the number decrease by 54. Find the changed number.
a) 28 b) 19 c) 37 d) 46 Answer: a Explanation: Let number be (10x + y) ...
View QuestionTwo alarm clocks ring their alarms at regular intervals of 50 seconds and 48 seconds. If they first beep together at 12 noon, at what time will they beep again for first time?
a) 12:10 PM b) 12:12 PM c) 12:11 PM d) 12:20 PM Answer: d Explanation: They will ring together ...
View QuestionLCM of two numbers is 936. If their HCF is 4 and one of the numbers is 72, the other is
a) 62 b) 42 c) 52 d) None of these Answer: cExplanation: Let two numbers be ...
View QuestionThe greatest number which will divides: 4003, 4126 and 4249, leaving the same remainder in each case:
a) 43 b) 41 c) 45 d) None of these Answer: b Explanation: Rule- Greatest number with which if ...
View QuestionIf A381 is divisible by 11, find the value of the smallest natural number A?
a) 9 b) 7 c) 6 d) 5 Answer: b Explanation: A number is divisible by 11 if the ...
View QuestionFind the LCM and HCF of 2.5, 0.5 and 0.175.
a) 17.5 b) 5 c) 7.5 d) 2.5 Answer: a Explanation: $$\eqalign{ & 2.5 = \frac{{25}}{{10}}, \cr ...
View QuestionWhen we reverse the digits of the number 13, the increases by 18. How many other two digit numbers increases by 18 when their digits are reversed?
a) 5 b) 6 c) 7 d) 8 Answer: b Explanation: Let the numbers are in the ...
View QuestionThe price of a car depreciates in the first year by 25% in the second year by 20% in third year by 15% and so on. The final price of the car after 3 years, if the present cost of the car is Rs.
a) 7,80,000 b) 1,70,000 c) 6,90,000 d) 5,10,000 Answer: d Explanation: Price after third ...
View QuestionIn an office in Singapore there are 60% female employees. 50 % of all the male employees are computer literate. If there are total 62% employees computer literate out of total 1600 employees, then the no. of female employees who are computer literate ?
a) 690 b) 674 c) 672 d) 960 Answer: c Explanation: Total employees = 1600 Female employees, 60% ...
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