Question
If the odd digits are decreased by 1 in the number
74589356, then how many prime numbers remain after rearrangement?Solution
7Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 8Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 8Â Â Â Â Â Â Â Â Â 8Â Â Â Â Â Â Â Â Â 2 Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 6
In a business, two partners, B and A, made investments in the ratio of 15:16. After 5 months, P joined with an investment of Rs. ...
Pawan and Qureshi started a business where Qureshi’s investment was 62.5% of Pawan’s investment. After 5 months, Pawan withdr...
Calculate Amit's share of the profit if Amit and Bishnu invested their capital for 6 months and 7 months, respectively, in a ratio of 6:5, and the total...
Armaan began a business with an initial investment of Rs. 2400. After 8 months, Bhuvan entered the business with an amount such that Armaan's investment...
A and B enter into partnership. A invests some money at beginning, B invests thrice the amount after 9 months and C invests double the amount after 6 mo...
- 'A' started a firm by investing Rs. 6,000. After 4 months, 'B' joined with an amount Rs. 1,000 more than 'A'. After 4 more months, 'C' joined with Rs. 8,00...
- Priya and Anjali began a partnership investing Rs. 2000 and Rs. 3000 respectively. After 6 months, Neha joined them with Rs. ‘x’. If Priya gets Rs. 500...
"P" and "Q" invested Rs. 4000 and Rs. 2500, respectively, to launch their businesses. 4 months later, "P" took out Rs. 1500 from his original investment...
A, B and C started a business with initial investments of Rs. 4,000, Rs. 4,500 and Rs. 5,500 respectively. After one year, A, B and C made additional in...
P and Q together started a business with initial investment in the ratio of 2:3, respectively. The time-period of investment for P and Q is in the ratio...
Relevant for Exams:
