Doubles every hour between 9 and 12, doubles every 2 hours after 12

9-10 : 4 flights : given

10-11: 8 flights : double the number between 9-10

11-12: 16 flights : double the number between 10 : 11

12-2 : 32 flights : etc.

2-4 : 64 flights

64 flights left the airport in the period from 2pm to 4pm.

79 = 40353607

Then,

(79-6) = 40353607 - 6 = 40353601

Unit digit means the first digit from the right. বাংলায় যাকে একক ঘরের সংখ্যা বলে।

Here the unit digit is 1.

x+x+x+x+x+1+2+3+4+5 = 265

or, 5x + 15 = 265

or, 5x = 265 - 15 = 250

or, x = 50

The largest 5 member of the set is,

50+6 = 56

50+7 =57

50+8 = 58

50+9= 59

50+10= 60

Then,

Average = (56+57+58+59+60) / 5

              = 290/5

              = 58

since "Brian and Cubby" form a plural noun and require a plural verb.

So, now that we know how to interpret the question, our equations are:

A + B = P

B = A + 10

C = A + P/4

We want to solve for C, so let's get rid of A and B by getting A in terms of P and then subbing into the Cubby equation:

A + 10 = B

A + A + 10 = P

2A = P - 10

A = P/2 - 5

C = P/2 - 5 + P/4

C = (2P/4) + P/4 - 5

C = (2P + P)/4 - 5

C = 3P/4 - 5

Lowest possible price after first sale = 0.3*2607 tk

                                                        = 782.1

Price after special sale = 0.2*782.1 tk

                                     = 156.42 tk

Area of first circle= Pi*r2 

Area of second circle= Pi*(1.01r)2 = Pi*1.0201r2

Percentage increase = (Pi*1.0201r2 - Pi*r2 ) * 100 / Pi*r2 

                                 = (1.0201 - 1) * 100

                                 = 2.01%

Given two equal glasses are respectively one third =1/3

and one fourth full of milk=1/4

total milk in both glass=1/3+1/4=7/12

water in 1st glass=1-1/3=2/3

water in 2nd glass=1-1/4=3/4

total water=2/3+3/4=17/12

then ratio of milk and water =(7/12)/(17/12)

ratio of milk and water =7:17

To solve them, you must find various relations between the gioven terms & answer accordingly. herein, first two terms are similar but it is because second 7 = 1st no. * 1 = 7*1=7 3rd term = 2nd * no*2 = 7 * 2= 14 4th = 3rd*3 = 14*3 = 42 5th = 4th *4 = 42*4 = 168 6th = 168*5 = 840

Question wise, Rahul = 4 years

Now, 2(4 + x) = (12 + x)

or, 8 + 2x = 12 + x

or, 2x - x = 12 - 8

or, x = 4

So, Manik's age will be = 12 + 4 = 16

The two train will never meet

For the first pipe, the area is: Pi * 22 = Pi * 4

For the second pipe, the area is: Pi * 42 = Pi * 16

Now,

pipe with Pi * 4 sq. inch area can fill the tank in 1 hour or 60 min

pipe with Pi * 16 sq. inch area can fill the tank in 1 hour or (60 * Pi * 4) / (Pi * 16) min

= (60 / 4) min

= 15 minutes