‘A’ starts his journey at 1:00 p.m. from a location P with a speed of 1 m/sec. ‘B’ starts his journey from the same location P and along the same direction at 1:10 p.m. with a speed of 2 m/sec. If ‘B’ meets ‘A’ at the location Q, then the distance PQ is : [#1122]
Q1. ‘A’ starts his journey at 1:00 p.m. from a location P with a speed of 1 m/sec. ‘B’ starts his journey from the same location P and along the same direction at 1:10 p.m. with a speed of 2 m/sec. If ‘B’ meets ‘A’ at the location Q, then the distance PQ is : Q1. ‘A’ starts his journey at 1:00 p.m. from a location P with a speed of 1 m/sec. ‘B’ starts his journey from the same location P and along the same direction at 1:10 p.m. with a speed of 2 m/sec. If ‘B’ meets ‘A’ at the location Q, then the distance PQ is :
(A) 1.5 km (A) 1.5 km
(B) 1.75 km (B) 1.75 km
(C) 1.2 km (C) 1.2 km
(D) 1.25 km (D) 1.25 km
Answer: (C) 1.2 km Answer: (C) 1.2 km
A starts journey before B at a speed of 1 m/s. Hence A will be ahead of B
(10*60)s * 1m/s = 600m
Let A covers a distance of X after starting of B,
Then X + 600m = 2X
=> 2X - X = 600m
=> X = 600m
Hence B will cover a distance of 2X = 2 * 600m = 1200m = 1.2 kmA starts journey before B at a speed of 1 m/s. Hence A will be ahead of B
(10*60)s * 1m/s = 600m
Let A covers a distance of X after starting of B,
Then X + 600m = 2X
=> 2X - X = 600m
=> X = 600m
Hence B will cover a distance of 2X = 2 * 600m = 1200m = 1.2 km
Q1. The difference between the smallest 3-digit even natural number and the largest 2-digit even natural number is Q1. The difference between the smallest 3-digit even natural number and the largest 2-digit even natural number is
Q3. What is the term for a shape with five sides? Q3. What is the term for a shape with five sides?
(A) Triangle (A) Triangle
(B) Quadrilateral (B) Quadrilateral
(C) Pentagon (C) Pentagon
(D) Hexagon (D) Hexagon
Answer: (C) Pentagon Answer: (C) Pentagon
A pentagon is a polygon with five sides, like the shape of the Pentagon building in Washington, D.C.A pentagon is a polygon with five sides, like the shape of the Pentagon building in Washington, D.C.
Q4. Three numbers are in the ratio 3:4:6 and their product is 1944. The largest of the numbers is. Q4. Three numbers are in the ratio 3:4:6 and their product is 1944. The largest of the numbers is.
Q7. When the numerator of a fraction is multiplied by 4 and the denominator by 9, the fraction reverses. The fraction is Q7. When the numerator of a fraction is multiplied by 4 and the denominator by 9, the fraction reverses. The fraction is
Q9. If the salary of A is 25% more than that of B, how much percentage is the salary of B lower than that of A? Q9. If the salary of A is 25% more than that of B, how much percentage is the salary of B lower than that of A?
