Question : Two equal glasses filled with alcohol and water in the proportions 2 : 1 and 3 : 2 are emptied into a third glass. The proportion of alcohol and water in the third glass will be:
Option 1: 13 : 17
Option 2: 19 : 17
Option 3: 13 : 11
Option 4: 19 : 11
Correct Answer: 19 : 11
Solution : Given: Ratio of alcohol and water in the first glass = 2 : 1 The ratio of alcohol and water in the second glass = 3 : 2 Let the quantity of mixture in each glass be 1 unit. Alcohol in the first glass = $\frac{2}{3}$ Water in the first glass = $\frac{1}{3}$ Alcohol in the second glass = $\frac{3}{5}$ Water in the second glass = $\frac{2}{5}$ Ratio of their mixtures = $(\frac{2}{3}+\frac{3}{5}):(\frac{1}{3}+\frac{2}{5})=\frac{19}{15}:\frac{11}{15}= 19:11$ Hence, the correct answer is 19 : 11.
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Question : What will happen if a glass bottle is filled with water, sealed with a lid and put into a freezer?
Option 1: The glass bottle will be deformed due to atmospheric pressure on the bottle after the water freezes.
Option 2: Nothing will happen
Option 3: The weight of the glass bottle will increase after the water freezes into ice.
Option 4: Eventually, the ice will burst the glass bottle.
Question : In ΔABC with sides 8 cm, 9 cm and 12 cm, the angle bisector of the largest angle divides the opposite sides into two segments. What is the length of the shorter segment?
Option 1: $5 \frac{11}{17} {~cm}$
Option 2: $4\frac{11}{17} {~cm}$
Option 3: $6\frac{13}{17} {~cm}$
Option 4: $3\frac{9}{17} {~cm}$
Question : Directions: Select the set in which the numbers are related in the same way as the numbers of the following set. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed.) (12, 125, 17) ( 8, 27, 11)
Option 1: (11, 32, 15)
Option 2: (19, 216, 25)
Option 3: (17, 16, 19)
Option 4: (9, 216, 16)
Question : What is the value of $3^{2}+7^{2}+11^{2}+13^{2}+17^{2}-1^{2}-5^{2}-9^{2}-11^{2}-15^{2}?$
Option 1: 5
Option 2: 72
Option 3: 92
Option 4: 184
Question : If the six-digit number 479xyz is exactly divisible by 7, 11, and 13, then {(y + z) ÷ x} is equal to:
Option 1: $4$
Option 2: $\frac{11}{9}$
Option 3: $\frac{7}{13}$
Option 4: $\frac{13}{7}$
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