Question
Statement Only a few Mirrors are Shadows
No Shadow is a Reflection All Mirrors are Refractions Conclusion I. Some Mirrors are not Reflections II. Some Refractions are Shadows III. All Refractions can never be Reflections In each question below, there are some statements followed by three conclusions numbered I, II and III. You have to take the given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows follow(s) from the given statements.Solution
Some Mirrors are Shadows (I) + No Shadow is a Reflection (E) → Some Mirrors are not Reflections (O). Hence conclusion I follows. Some Mirrors are Shadows (I) → Conversion → Some Shadows are Mirrors (I) + All Mirrors are Refractions (A) → Some Shadows are refractions (I) → Conversion → Some Refractions are Shadows (I). Hence conclusion II follows. Some Mirrors are Shadows (I) + No Shadow is a Reflection (E) → Some Mirrors are not Reflections (O). All Mirrors are Refractions (A) → Conversion → Some refractions are mirrors (I) + Some Mirrors are not Reflections (O) → Probable conclusion → All Refractions can never be Reflections (A). Hence conclusion III follows.
12 of 8 - 9 ÷ 3 × 16 - 17 + 6 of 4 - 15
f(x)=x+ ∣ x ∣ , then the function is:
P can complete a work in 25 days, while Q can complete the same work in 30 days. They work together for 5 days, and then P is replaced by R, who can com...
A particular sum of money, when invested at a simple interest rate, yields Rs. 3,000 as interest after 2 years. The same sum, whe...
A cone has a height of 12 cm and a base radius of 5 cm. A sphere with the same volume as the cone is constructed. What is the radius of the sphere?
Pipe ‘X’ can fill a tank in 20 hours while pipe ‘Y’ can empty it in 24 hours. They were operated alternately starting with pipe ‘X’. Find th...
A shopkeeper sold an article for Rs. 500 after offering a discount of 20%. If he earned a profit of 25%, then find the ratio of cost price to the marked...
If log₂(x) + log₄(x) + log₈(x) = 11, with x > 0, then the value of x is:
20, 247, 447, 620, ?, 885
315 people went to a park. The number of men is 25 more than the number of women and the number of adults is 15 more than the number of children. How ma...
