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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:- Find the greatest number which will divide 25, 73 and 97 so as to leave the same remainder in each case.
A. 12
B. 18
C. 24
D. 32
Ques:- Find out the wrong number in the series:
5, 15, 30, 135, 405, 1215, 3645
5, 15, 30, 135, 405, 1215, 3645
A. 15
B. 30
C. 405
D. 3645
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