The average height of 21 girls was recorded as 148 cm. When the teacher's height was included, the average of their heights increased by 1 cm. What was the height of the teacher?
A156 cm
B168 cm
C170 cm
D162 cm
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
ആദ്യത്തെ 8 ഒറ്റ സംഖ്യകളുടെ ശരാശരി എത്ര ?
മൂന്നിന്റെ ആദ്യത്തെ അഞ്ച് ഗുണിതങ്ങളുടെ ശരാശരി എത്ര?
The average age of 25 girls in a class is 11.2 years and that of the remaining 15 girls is 10 years. Find the average age of all the girls in the class.
The average weight of 5 persons is increased by one kg; when one of them whose weight is 60 kg is replaced by a new man. The weight of new man is
The average of 7 consecutive numbers is 20. The largest of these numbers is :