Others Maths Puzzle

The sequence 2, 5, 11, 23, 47 consists of five primes, each being one more than double the previous one. Find another such sequence (consisting of five primes, each being one more than double the previous one).

Read Solution (Total 1)

89,179,359,719, 1439,2879
13 years agoHelpfull: Yes(1) No(1)

Others Other Question

Rahim plans to drive from city A to station C, at the speed of 70 km per hour, to catch a train arriving there from B. He must reach C at least 15 minutes before the arrival of the train. The train leaves B, located 500 km south of A, at 8:00 am and travels at a speed of 50 km per hour. It is known that C is located between west and northwest of B, with BC at 60° to AB. Also, C is located between south and southwest of A with AC at 30° to AB. The latest time by which Rahim must leave A and still catch the train is closest to

6:15 am
6:30 am
6:45 am
7:00 am
7:15 am
I have 19 coins in my pocket which total Rs 1.00. You have 15 coins in yours that also total Rs 1.00. Yet you have more 5 p, , 10 p and 25 p coins than I do. What coins do each of us have? ( All coins are 1 p, 5 p, 10 p,25 p, 50 p.) .
Pls don't say that small coins are no more in use now.