1926: A girl is swinging on a swing in sitting position. When the same girl stands up, the period of swing will

(a) be shorter

(b) be longer

(c) depend on the height of the girl

(d) not change
1927: Which one of the following pairs is not correctly matched?

Current Name : Old Name

(a) Harare : Salisbury

(b) Ethiopia : Abyssinia

(c) Ghana : Dutch Guiana

(d) Kinshasa : Leopoldville

1928: Amar, Akbar and Anthony are friends, being looked after by a matron Farah. Amar weighs 50% more than Akbar and Anthony weighs 25% less than Amar. Farah weighs a third of the combined weight of the three boys. All four together weigh 232 kg. The correct arrangement of the persons in the ascending order of their weights is

(a) Anthony, Akbar, Farah, Amar
(b) Anthony, Akbar, Amar, Farah
(c) Akbar, Anthony, Amar, Farah
(d) Akbar, Anthony, Farah, Amar
1929: The escape velocity from the earth's surface is about:

(a) 30 km/sec

(b) 6 km/sec

(c) 11.2 km/sec

(d) 300 km/sec
1930: If the number representing volume and surface area of a cube are equal, then the length of the edge of the cube in terms of the unit of measurement will be

(a) 3
(b) 4
(c) 5
(d) 6