Question
Who among the following person lives immediate above
flat of O? Answer the questions based on the information given below. Eight persons M, N, O, P, Q, R, S and T are living on four different floors of a building. Ground floor is numbered 1 and top floor is numbered four. There are two flats on each floor- flat-1 and flat-2 from west to east such that flat 1 is west of flat 2. Flat-1 of second floor is exactly above flat-1 of first floor and other flats are placed in the same way. All of them likes different colours brands i.e. Pink, Green, Yellow, Red, Blue, WHITE, Black and Brown but not necessary in same order. M likes Red and lives in even number flat. P lives North West of Q’s flat. O lives one of the floor below P’s floor. One floor is between T and R, who likes Brown. T and R lives in same flat number. Q does not live on second floor. Only one floor gap between the one who likes Black and the one who likes Pink. The one who likes Green does not live in even number flat. N lives east of T who lives south of P. S does not live in the same flat number in which Q lives. S lives above Q. the one who likes Blue lives west of the one who likes Yellow. The one who likes Pink lives above the floor of one who likes Blue. The one who likes WHITE lives in even number flat.Solution
P lives North West of Q’s flat. Q does not live on second floor. S does not live in the same flat number in which Q lives. S lives above Q. From these statements, we will have six cases: P lives at flat 1 either on floor no. 4 or 3 or 2. Q lives at flat 2 on floor no. 1. S lives at flat 1 on floor no. 4 or 3 or 2. N lives east of T who lives south of P. T lives at flat 1 of either floor no. 2 or 3. N lives at flat 2 of either floor no. 2 or 3. Case 4 , 5 and 6 will get 
One floor is between T and R, who likes Brown H and R lives in same flat number. Case 1 and 3 will get discarded as there is no gap of one floor between T and 
O lives one of the floor below P’s floor. So, O lives at flat 2 of floor no. 2. M likes Red and lives in even number flat. So, M lives at flat 2 of floor no. 4. Only one floor gap between the one who likes Black and the one who likes Pink. The one who likes Green does not live in even number flat. The one who likes Blue lives west of the one who likes Yellow. The one who likes Pink lives above the floor of one who likes Blue. The one who likes WHITE lives in even number flat. The one who likes Pink lives at flat 1 on floor no. 4 and the one who likes Blue lives at flat 1 on floor no. 3. The one who likes Green lives at flat 1 on floor no. 2. The one who likes Black lives at flat 2 on floor no. 2. 
In a circle, two chords AB & CD are produced at P which is outside the circle . If PA= 18 cm, AB= 12 cm , PC = 6 cm then find CD.
From an external point P, two tangents PA and PB are drawn to a circle with centre O and radius 5 cm. The angle ∠APB is 60°. Find OP and PA.
- The area of a circle is nine times its circumference (numerically). What is the diameter of the circle?
- Find the area of a circle whose radius is (4/5)ᵗʰ of the side of a square whose area is 2,025 cm². (Use π = 3.14)
- In a circular field, the area is six times its circumference in terms of numerical value. Calculate the diameter of the field.
- The diagonals of a rhombus are in the ratio 7:5, and its area is 3,500 cm². A circle is formed taking the smaller diagonal as the diameter. Find the diffe...
- Calculate the area of a circle whose radius is (7/8)ᵗʰ of the side of a square whose area measures 1,600 cm². (Take π = 3.14)
In a circle of radius 10 cm, a chord AB has length 10√3 cm. Find:
(i) the distance of the chord from the centre, and
(ii) the measure of...
The wheel of a car made 300 rotations. How much distance did the car travel if the diameter of the wheel is 28 inches? (1 inch = 2.54cm)
In the figure given below, a circle is inscribed in a triangle ABC. If AB = 18 cm, BC = 14 cm and AC = 16 cm, then find the length of YC.
Relevant for Exams:
