Question
Statements: All books are erasers. No
sharpener is pencil. All pencils are books. Only a few pencils are bright. Conclusions: 1) Only erasers are pencil. 2) Only pencil is eraser. Read all the statements and then decide which of the given conclusions logically follow from the given statements disregarding commonly known facts.Solution
Alternate Method: All pencils are books (A) + All books are erasers (A) ⇒ All pencils are erasers (A) ⇒ Conversion ⇒ Some erasers are pencils (I). Hence conclusion I follows but conclusion II does not follow.
There are five friends, P, Q, R, S and T. P says to Q, “If you give me Rs 300, you will have as many as I have at this moment. If S takes Rs 500 f...
A cuboidal box has dimensions of length = 18 cm, breadth = 15 cm, and height = 10 cm. If the breadth is increased by 20% and the height is decreased by ...
The average of x numbers is 24. If 60% of these numbers are reduced by 5 and the remaining 40% are increased by 10, what will be the new average of the ...
The difference between the interest earned from investing ₹P in simple interest at an annual rate of 25% and the interest earned from investing the sa...
Vinay invested Rs. 9,500 in scheme 'A' at a simple interest rate of 12% per annum and Rs. 8,000 in scheme 'B' at a simple interest rate of 20% per annum...
In a village with a population of 8,500 people, 80% of them are adults. Among these adults, only 75% possess a ration card. Furthermore, 60% of the rati...
Rakesh travels a certain distance with a constant speed of 24 km/h such that he reaches 2 hours late. If he travelled at constant speed of 30 km/h he wo...
Two pipes, A and B, can independently fill the tank in 24 minutes and 30 minutes respectively, while pipe C can empty 9 gallons from the tank in 3 minut...
Find the sum of first 25 even numbers.
A boat has a speed of 30 km/h in still water. In a particular stream, the boat's downstream speed is 50% faster than its speed upstream. What is the spe...