How mant psoitive intigers less than 20 are equal to sum of a positive multiple of 3 and a positive multiple of 4?

If three metal cubes having sides of 3 cm, 4 cm and 5 cm were melted to make a single cube, what would be the...

Two items were sold together for taka 3600. One item was sold at 20% profit while the other was sold at 20% lo...

Baki lives miles west of Raju's . Rafiq lives 3 lives north of Raju's house and 2 miles west of Diba's house....

If the average of 7,13, p and q is 17, what is the average of (p+11) and (q-9)?

M is a girl has the same number of brothers as sisters. N is a boy and has twice as amny sisters as brothers....

In a legislative body of 200 people the name Democrats is 50 less than 4 times the numbers of Republicans. If...