State True or False :

The multiplicative inverse of an integer is never an integer.

State True or False :

Any integer multiplied to its multiplicative inverse always gives the multiplicative identity.

State True or False :

The quotient of two integers with unlike signs is always negative.

Aditya went to Australia during the holidays of his children. They visited the coral reef and they were all excited to go for scuba diving. Aditya dived 36 feet to reach the brain coral as his instructor had directed him. He then rose by 19 feet to travel over a ridge.

(1) What is the depth of the ridge ?

1. 57 feet
2. 19 feet
3. 17 feet
4. 45 feet

(2) Aditya again dived 58 feet to reach the base of the reef. What is the depth of the reef ?

1. 32 feet
2. 41 feet
3. 58 feet
4. 75 feet

(3) In order to see an underwater cave, Aditya rose 26 feet. What is his location with respect to sea-level ?

1. 49 feet
2. 101 feet
3. 26 feet
4. 9 feet

(4) If a whale moving at a depth of 21 feet from the sea level passed over Aditya, what was its distance from Aditya ?

1. 64 feet
2. 49 feet
3. 53 feet
4. 28 feet