Ques:- In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 per kg?
A. 3 : 7
B. 5 : 7
C. 7 : 3
D. 7 : 5
Ques:- The largest natural number by which the product of three consecutive even natural numbers is always divisible is
A. 16
B. 24
C. 48
D. 96
Ques:- The prime numbers dividing 143 and leaving a remainder of 3 in each case are
A. 2 and 11
B. 3 and 7
C. 5 and 7
D. 11 and 13
Ques:- Which one of the following animals stores water in the intestine?
A. Moloch
B. Uromastix
C. Zebra
D. Camel