Question
Some flowers may not be sticks. All marbles may
be baskets. Some sticks may not be marbles. In the given question, a set of conclusions is given. There are five options comprising of three or more statements. You need to choose the option that contains the set of statements from which the given conclusions logically follow.Solution
Some sticks are baskets (I) + No basket is a flower (E) ⇒Some sticks are not flower (E) ⇒ [Probable conclusion] ⇒ Some flowers may not be sticks Some marbles are sticks (I) + All sticks are baskets (A) ⇒ Some marbles are baskets (I) ⇒ All marbles may be baskets (A). Some marbles are sticks (I) ⇒ Conversion ⇒ Some sticks are marbles (I) ⇒ [Probable conclusion] ⇒ Some sticks may not be marbles Hence, option 1 is correct. By elimination method - By 2, All + No = no possibility case can be drawn between marble and basket. Hence it is eliminated. By 3, some + no = All marble can’t be basket. Hence it is eliminated. By 4, No marble is stick. So possibility case can’t be drawn between them. Hence it is eliminated. Hence answer is option 1.
Two numbers are in the ratio 3:5 and their HCF is 20. Their LCM is
Two numbers are in the ratio 3:7. The product of their H.C.F. and L.C.M. is 2541. The sum of the numbers is:
The HCF of two numbers is 21. Which of the following can never be their LCM?
Find the HCF of 240, 280 and 560.
- If the product of two numbers is 225 and their HCF is 15, then find the LCM of the given two numbers.
The L.C.M of a² – 2a – 3 and a³ + a² + a + 1 isÂ
The H.C.F. of two numbers is 16 and the other two factors of their L.C.M. are 4 and 13. The larger of the two numbers is:
Find the HCF of two numbers if LCM and product of those two numbers are 15 and 675 respectively.
A, B and C start running at the same time and at the same point in the same direction in a circular stadium. A completes a round in 720 seconds, B in 10...
Find the HCF and LCM of 18 and 30.