Shiva decided to drive through the city and on the first day he drove for only 7 miles. On the last day he drove for 51 miles, increasing his journey 4 miles each day. Calculate the number of days he traveled and how far did he travel?
Select
A) 335 miles in 10 days
B) 348 miles in 12 days
C) 338 miles in 15 days
D) 358 miles in 12 days
E) 368 miles in 12 days
According to the question   miles travelled in 2nd day = 7+4   miles travelled by 3rd, 4th....= 7 + 2*4,7 + 3*4......   A.P. = 7,7+4,7+2*4,......7 + ( n-1)4   IT's given   7 + (n-1)4 = 51   (n-1)4 = 44   n -1 = 11   n = 12   Total number of days = 12   total miles travelled Shiva   = n/2(a + l) [ a = 1st term , l = last term]   = 12/2(7 + 51)   = 6(58)   = 348   so total miles 348 travelled in 12 days   ANSWER:348 miles in 12 days
<result>B</result>
Shiva decided to drive through the city and on the first day he drove for only 7 miles. On the last day he drove for 51 miles, increasing his journey 4 miles each day. Calculate the number of days he traveled and how far did he travel?