546: Amit has five friends : 3 girls and 2 boys. Amit's wife also has 5 friends : 3 boys and 2 girls. In how many maximum number of different ways can they invite 2 boys and 2 girls such that two of them are Amit's friends and two are his wife's ?
(A) 46
(B) 38
(C) 58
(D) 24
547: Which one of the following countries does NOT border the Caspian Sea?
(a) Armenia
(b) Azerbaijan
(c) Kazakhstan
(d) Turkmenistan
548: Recently, there has been a concern over the short supply of a group of elements called 'rare earth metals'. Why?
1. China, which is the largest producer of these elements, has imposed some restrictions on their export.
2. Other than China, Australia, Canada and Chile, these elements are not found in any country.
3. Rare earth metals are essential for the manufacture of various kinds of electronic items and there is a growing demand for these elements.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
549: Nanda Devi peak forms a part of
(a) Assam Himalayas
(b) Kumaon Himalayas
(c) Nepal Himalayas
(d) Punjab Himalayas
550: Which among the following is a folk dance of India?
(a) Manipuri
(b) Garba
(c) Kathakali
(d) Mohiniattam