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2 solved questions on LCM
CSS 2019General Science & AbilityQ. 6
(a) Moiz was trying to sleep at night but there was too much noise around him. His clock ticked every 5 seconds; a tap was dripping every seventh second and a pet dog snored every 12th second. He noticed on his clock that all three things happened together on the stroke of midnight. Find after how many seconds these three things happened together. (b) One pipe can fill a pool 1.25 times as fast as second pipe. When both pipes are opened they can fill the pool in five hours. How long will it take to fill the pool if only the slower pipe is used? (c) The cost of hiring a car for 2 days in 2018 was Rs. 264 which was 20% more than in 2013. What was the cost of hiring a car in 2013? (d) What do you understand by measure of central tendency? State its types.
#cssnexus #LCM #Pipes and Cisterns #Percentage
CSS Nexus6 Nov 2026
CSS 2017General Science & AbilityQ. 7
(A) A man buys 5kg of meat at Rs.500 per kg. In addition, for every kilogram of meat purchased, he has to pay a consumption tax of 6% on the selling price. Calculate the total amount of money that he has to pay. (B) It takes Ali 30 minutes to mark a paper. Aslam only needs 25 minutes to mark a paper. If they both start marking papers at 10:00 AM, at what time they will finish marking at the same time? (C) Two bus tickets from Rawalpindi to Islamabad and three tickets from Rawalpindi to Murree cost Rs.770 but three tickets from Rawalpindi to Islamabad and two tickets from Rawalpindi to Murree cost Rs.730. What are the fares for cities Islamabad and Murree from Rawalpindi? (D) A told B that C is his father's nephew. D is A's cousin but not the brother of C. What relationship is there between D and C?
#cssnexus #Percentage #LCM #Simultaneous Equations
CSS Nexus6 Nov 2026