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Practise
[mq] Set Theory: Level 3 (Hard) 1. In a class of 60 students, 30 study Math, 25 study Physics, and 20 study Chemistry. 10 study M&P, 8 study P&C, 7 study M&C. 3 study all three. How many study **only** Math? 10 12 15 16 13 Check Solution (D): Only M = \( M –…
[mq] Set Theory: Level 2 1. In a survey of 100 people, 60 like Coffee, 50 like Tea, and 20 like neither. How many like both? 10 20 30 40 50 Check Solution (C): Union (C or T) = Total – Neither = \( 100 – 20 = 80 \). \( 80 = 60 +…
[mq] DS: Mixture & Alligation – Level 4 1. A tank contains 40 liters of pure milk. A certain quantity of milk is removed and replaced with water. This process is repeated once more (total 2 times). How much milk remains in the tank?(1) The quantity removed each time is 4 liters.(2) The final ratio…
[mq] DS: Mixture & Alligation – Level 4 1. A tank contains 40 liters of pure milk. A certain quantity of milk is removed and replaced with water. This process is repeated once more (total 2 times). How much milk remains in the tank?(1) The quantity removed each time is 4 liters.(2) The final ratio…
[mq] SI / CI / Growth: Level 2 1. Invest $1000 at 8% annual interest compounded **semi-annually**. What is the amount after 1 year? $1080 $1040 $1081.60 $1082 $1100 Check Solution (C): Semi-annual means rate is \(8\%/2 = 4\%\) per period, and there are 2 periods in 1 year. \( A = 1000 (1 +…
[mq] SI / CI / Growth: Level 2 1. Invest $1000 at 8% annual interest compounded **semi-annually**. What is the amount after 1 year? $1080 $1040 $1081.60 $1082 $1100 Check Solution (C): Semi-annual means rate is \(8\%/2 = 4\%\) per period, and there are 2 periods in 1 year. \( A = 1000 (1 +…